Home / 15,771.92-21,767.76-9,484.30

Finding the Fourth Proportional to 15,771.92, 21,767.76 and 9,484.30

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Solution

The fourth proportional to 15,771.92, 21,767.76 and 9,484.30 is: 13,089.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.92 : 21,767.76 = 9,484.30 : x
  2. Step 2: Convert to fraction form
    15,771.92/21,767.76 = 9,484.30/x
  3. Step 3: Cross multiply
    15,771.92x = 21,767.76 × 9,484.30
  4. Step 4: Simplify right side
    15,771.92x = 206,451,809.91
  5. Step 5: Solve for x
    x = 206,451,809.91/15,771.92
  6. Step 6: Final answer
    x = 13,089.83

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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.