Home / 10,487.22-15,724.05-5,559.18

Finding the Fourth Proportional to 10,487.22, 15,724.05 and 5,559.18

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Solution

The fourth proportional to 10,487.22, 15,724.05 and 5,559.18 is: 8,335.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.22 : 15,724.05 = 5,559.18 : x
  2. Step 2: Convert to fraction form
    10,487.22/15,724.05 = 5,559.18/x
  3. Step 3: Cross multiply
    10,487.22x = 15,724.05 × 5,559.18
  4. Step 4: Simplify right side
    10,487.22x = 87,412,824.28
  5. Step 5: Solve for x
    x = 87,412,824.28/10,487.22
  6. Step 6: Final answer
    x = 8,335.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.