Home / 14,501.43-20,013.38-8,129.10

Finding the Fourth Proportional to 14,501.43, 20,013.38 and 8,129.10

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Solution

The fourth proportional to 14,501.43, 20,013.38 and 8,129.10 is: 11,218.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,501.43 : 20,013.38 = 8,129.10 : x
  2. Step 2: Convert to fraction form
    14,501.43/20,013.38 = 8,129.10/x
  3. Step 3: Cross multiply
    14,501.43x = 20,013.38 × 8,129.10
  4. Step 4: Simplify right side
    14,501.43x = 162,690,726.71
  5. Step 5: Solve for x
    x = 162,690,726.71/14,501.43
  6. Step 6: Final answer
    x = 11,218.94

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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.