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Finding the Fourth Proportional to 8,358.86, 11,521.22 and 6,674.88

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Solution

The fourth proportional to 8,358.86, 11,521.22 and 6,674.88 is: 9,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.86 : 11,521.22 = 6,674.88 : x
  2. Step 2: Convert to fraction form
    8,358.86/11,521.22 = 6,674.88/x
  3. Step 3: Cross multiply
    8,358.86x = 11,521.22 × 6,674.88
  4. Step 4: Simplify right side
    8,358.86x = 76,902,760.95
  5. Step 5: Solve for x
    x = 76,902,760.95/8,358.86
  6. Step 6: Final answer
    x = 9,200.15

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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.