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Finding the Fourth Proportional to 8,347.80, 12,521.70 and 5,067.30

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Solution

The fourth proportional to 8,347.80, 12,521.70 and 5,067.30 is: 7,600.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.80 : 12,521.70 = 5,067.30 : x
  2. Step 2: Convert to fraction form
    8,347.80/12,521.70 = 5,067.30/x
  3. Step 3: Cross multiply
    8,347.80x = 12,521.70 × 5,067.30
  4. Step 4: Simplify right side
    8,347.80x = 63,451,210.41
  5. Step 5: Solve for x
    x = 63,451,210.41/8,347.80
  6. Step 6: Final answer
    x = 7,600.95

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1.5x scale

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.