Home / 13,924.29-20,837.63-9,979.90

Finding the Fourth Proportional to 13,924.29, 20,837.63 and 9,979.90

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Solution

The fourth proportional to 13,924.29, 20,837.63 and 9,979.90 is: 14,934.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,924.29 : 20,837.63 = 9,979.90 : x
  2. Step 2: Convert to fraction form
    13,924.29/20,837.63 = 9,979.90/x
  3. Step 3: Cross multiply
    13,924.29x = 20,837.63 × 9,979.90
  4. Step 4: Simplify right side
    13,924.29x = 207,957,463.64
  5. Step 5: Solve for x
    x = 207,957,463.64/13,924.29
  6. Step 6: Final answer
    x = 14,934.87

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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.