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Finding the Fourth Proportional to 13,389.66, 20,047.14 and 10,092.78

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Solution

The fourth proportional to 13,389.66, 20,047.14 and 10,092.78 is: 15,111.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.66 : 20,047.14 = 10,092.78 : x
  2. Step 2: Convert to fraction form
    13,389.66/20,047.14 = 10,092.78/x
  3. Step 3: Cross multiply
    13,389.66x = 20,047.14 × 10,092.78
  4. Step 4: Simplify right side
    13,389.66x = 202,331,373.65
  5. Step 5: Solve for x
    x = 202,331,373.65/13,389.66
  6. Step 6: Final answer
    x = 15,111.02

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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.