Home / 10,407.62-15,615.05-4,861.55

Finding the Fourth Proportional to 10,407.62, 15,615.05 and 4,861.55

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Solution

The fourth proportional to 10,407.62, 15,615.05 and 4,861.55 is: 7,294.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,407.62 : 15,615.05 = 4,861.55 : x
  2. Step 2: Convert to fraction form
    10,407.62/15,615.05 = 4,861.55/x
  3. Step 3: Cross multiply
    10,407.62x = 15,615.05 × 4,861.55
  4. Step 4: Simplify right side
    10,407.62x = 75,913,361.06
  5. Step 5: Solve for x
    x = 75,913,361.06/10,407.62
  6. Step 6: Final answer
    x = 7,294.02

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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.