Home / 16,997.65-23,453.15-9,920.88

Finding the Fourth Proportional to 16,997.65, 23,453.15 and 9,920.88

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Solution

The fourth proportional to 16,997.65, 23,453.15 and 9,920.88 is: 13,688.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,997.65 : 23,453.15 = 9,920.88 : x
  2. Step 2: Convert to fraction form
    16,997.65/23,453.15 = 9,920.88/x
  3. Step 3: Cross multiply
    16,997.65x = 23,453.15 × 9,920.88
  4. Step 4: Simplify right side
    16,997.65x = 232,675,837.17
  5. Step 5: Solve for x
    x = 232,675,837.17/16,997.65
  6. Step 6: Final answer
    x = 13,688.71

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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.