Home / 10,557.15-15,821.97-4,309.83

Finding the Fourth Proportional to 10,557.15, 15,821.97 and 4,309.83

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Solution

The fourth proportional to 10,557.15, 15,821.97 and 4,309.83 is: 6,459.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,557.15 : 15,821.97 = 4,309.83 : x
  2. Step 2: Convert to fraction form
    10,557.15/15,821.97 = 4,309.83/x
  3. Step 3: Cross multiply
    10,557.15x = 15,821.97 × 4,309.83
  4. Step 4: Simplify right side
    10,557.15x = 68,190,000.97
  5. Step 5: Solve for x
    x = 68,190,000.97/10,557.15
  6. Step 6: Final answer
    x = 6,459.13

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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.