Home / 10,487.67-15,731.99-3,092.20

Finding the Fourth Proportional to 10,487.67, 15,731.99 and 3,092.20

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Solution

The fourth proportional to 10,487.67, 15,731.99 and 3,092.20 is: 4,638.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.67 : 15,731.99 = 3,092.20 : x
  2. Step 2: Convert to fraction form
    10,487.67/15,731.99 = 3,092.20/x
  3. Step 3: Cross multiply
    10,487.67x = 15,731.99 × 3,092.20
  4. Step 4: Simplify right side
    10,487.67x = 48,646,459.48
  5. Step 5: Solve for x
    x = 48,646,459.48/10,487.67
  6. Step 6: Final answer
    x = 4,638.44

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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.