Home / 8,320.44-12,484.02-3,126.72

Finding the Fourth Proportional to 8,320.44, 12,484.02 and 3,126.72

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Solution

The fourth proportional to 8,320.44, 12,484.02 and 3,126.72 is: 4,691.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.44 : 12,484.02 = 3,126.72 : x
  2. Step 2: Convert to fraction form
    8,320.44/12,484.02 = 3,126.72/x
  3. Step 3: Cross multiply
    8,320.44x = 12,484.02 × 3,126.72
  4. Step 4: Simplify right side
    8,320.44x = 39,034,035.01
  5. Step 5: Solve for x
    x = 39,034,035.01/8,320.44
  6. Step 6: Final answer
    x = 4,691.34

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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.