Home / 15,592.89-21,517.07-8,517.81

Finding the Fourth Proportional to 15,592.89, 21,517.07 and 8,517.81

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Solution

The fourth proportional to 15,592.89, 21,517.07 and 8,517.81 is: 11,753.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,592.89 : 21,517.07 = 8,517.81 : x
  2. Step 2: Convert to fraction form
    15,592.89/21,517.07 = 8,517.81/x
  3. Step 3: Cross multiply
    15,592.89x = 21,517.07 × 8,517.81
  4. Step 4: Simplify right side
    15,592.89x = 183,278,271.43
  5. Step 5: Solve for x
    x = 183,278,271.43/15,592.89
  6. Step 6: Final answer
    x = 11,753.96

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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.