Home / 13,998.66-19,318.16-7,711.04

Finding the Fourth Proportional to 13,998.66, 19,318.16 and 7,711.04

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Solution

The fourth proportional to 13,998.66, 19,318.16 and 7,711.04 is: 10,641.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.66 : 19,318.16 = 7,711.04 : x
  2. Step 2: Convert to fraction form
    13,998.66/19,318.16 = 7,711.04/x
  3. Step 3: Cross multiply
    13,998.66x = 19,318.16 × 7,711.04
  4. Step 4: Simplify right side
    13,998.66x = 148,963,041.78
  5. Step 5: Solve for x
    x = 148,963,041.78/13,998.66
  6. Step 6: Final answer
    x = 10,641.23

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Double scale
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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.