Home / 14,139.38-19,503.41-9,110.21

Finding the Fourth Proportional to 14,139.38, 19,503.41 and 9,110.21

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Solution

The fourth proportional to 14,139.38, 19,503.41 and 9,110.21 is: 12,566.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.38 : 19,503.41 = 9,110.21 : x
  2. Step 2: Convert to fraction form
    14,139.38/19,503.41 = 9,110.21/x
  3. Step 3: Cross multiply
    14,139.38x = 19,503.41 × 9,110.21
  4. Step 4: Simplify right side
    14,139.38x = 177,680,017.75
  5. Step 5: Solve for x
    x = 177,680,017.75/14,139.38
  6. Step 6: Final answer
    x = 12,566.32

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Half scale
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Double scale
Find fourth proportional to 14,140.38, 19,504.78 and 9,111.21
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.