Home / 15,546.57-21,454.23-8,472.99

Finding the Fourth Proportional to 15,546.57, 21,454.23 and 8,472.99

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Solution

The fourth proportional to 15,546.57, 21,454.23 and 8,472.99 is: 11,692.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,546.57 : 21,454.23 = 8,472.99 : x
  2. Step 2: Convert to fraction form
    15,546.57/21,454.23 = 8,472.99/x
  3. Step 3: Cross multiply
    15,546.57x = 21,454.23 × 8,472.99
  4. Step 4: Simplify right side
    15,546.57x = 181,781,476.25
  5. Step 5: Solve for x
    x = 181,781,476.25/15,546.57
  6. Step 6: Final answer
    x = 11,692.71

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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.