Home / 15,775.52-21,769.50-8,605.27

Finding the Fourth Proportional to 15,775.52, 21,769.50 and 8,605.27

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Solution

The fourth proportional to 15,775.52, 21,769.50 and 8,605.27 is: 11,874.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,775.52 : 21,769.50 = 8,605.27 : x
  2. Step 2: Convert to fraction form
    15,775.52/21,769.50 = 8,605.27/x
  3. Step 3: Cross multiply
    15,775.52x = 21,769.50 × 8,605.27
  4. Step 4: Simplify right side
    15,775.52x = 187,332,370.84
  5. Step 5: Solve for x
    x = 187,332,370.84/15,775.52
  6. Step 6: Final answer
    x = 11,874.88

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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.