Home / 8,079.60-12,114-6,521.52

Finding the Fourth Proportional to 8,079.60, 12,114 and 6,521.52

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Solution

The fourth proportional to 8,079.60, 12,114 and 6,521.52 is: 9,777.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.60 : 12,114 = 6,521.52 : x
  2. Step 2: Convert to fraction form
    8,079.60/12,114 = 6,521.52/x
  3. Step 3: Cross multiply
    8,079.60x = 12,114 × 6,521.52
  4. Step 4: Simplify right side
    8,079.60x = 79,001,693.28
  5. Step 5: Solve for x
    x = 79,001,693.28/8,079.60
  6. Step 6: Final answer
    x = 9,777.92

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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.