Home / 8,711.14-12,027.45-6,691.18

Finding the Fourth Proportional to 8,711.14, 12,027.45 and 6,691.18

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Solution

The fourth proportional to 8,711.14, 12,027.45 and 6,691.18 is: 9,238.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.14 : 12,027.45 = 6,691.18 : x
  2. Step 2: Convert to fraction form
    8,711.14/12,027.45 = 6,691.18/x
  3. Step 3: Cross multiply
    8,711.14x = 12,027.45 × 6,691.18
  4. Step 4: Simplify right side
    8,711.14x = 80,477,832.89
  5. Step 5: Solve for x
    x = 80,477,832.89/8,711.14
  6. Step 6: Final answer
    x = 9,238.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.