Home / 14,170.19-19,557.57-9,381.69

Finding the Fourth Proportional to 14,170.19, 19,557.57 and 9,381.69

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Solution

The fourth proportional to 14,170.19, 19,557.57 and 9,381.69 is: 12,948.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,170.19 : 19,557.57 = 9,381.69 : x
  2. Step 2: Convert to fraction form
    14,170.19/19,557.57 = 9,381.69/x
  3. Step 3: Cross multiply
    14,170.19x = 19,557.57 × 9,381.69
  4. Step 4: Simplify right side
    14,170.19x = 183,482,985.55
  5. Step 5: Solve for x
    x = 183,482,985.55/14,170.19
  6. Step 6: Final answer
    x = 12,948.52

Related Problems

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Half scale
Find fourth proportional to 28,340.38, 39,115.14 and 18,763.37
Double scale
Find fourth proportional to 14,171.19, 19,558.95 and 9,382.69
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.