Home / 12,885.24-19,327.55-4,120.23

Finding the Fourth Proportional to 12,885.24, 19,327.55 and 4,120.23

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Solution

The fourth proportional to 12,885.24, 19,327.55 and 4,120.23 is: 6,180.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885.24 : 19,327.55 = 4,120.23 : x
  2. Step 2: Convert to fraction form
    12,885.24/19,327.55 = 4,120.23/x
  3. Step 3: Cross multiply
    12,885.24x = 19,327.55 × 4,120.23
  4. Step 4: Simplify right side
    12,885.24x = 79,633,951.34
  5. Step 5: Solve for x
    x = 79,633,951.34/12,885.24
  6. Step 6: Final answer
    x = 6,180.25

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Half scale
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Double scale
Find fourth proportional to 12,886.24, 19,329.05 and 4,121.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.