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Finding the Fourth Proportional to 15,592.50, 21,518.13 and 8,519.39

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Solution

The fourth proportional to 15,592.50, 21,518.13 and 8,519.39 is: 11,757.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,592.50 : 21,518.13 = 8,519.39 : x
  2. Step 2: Convert to fraction form
    15,592.50/21,518.13 = 8,519.39/x
  3. Step 3: Cross multiply
    15,592.50x = 21,518.13 × 8,519.39
  4. Step 4: Simplify right side
    15,592.50x = 183,321,233.95
  5. Step 5: Solve for x
    x = 183,321,233.95/15,592.50
  6. Step 6: Final answer
    x = 11,757.01

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Double scale
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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.