Home / 8,501.20-12,737.40-4,109.20

Finding the Fourth Proportional to 8,501.20, 12,737.40 and 4,109.20

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Solution

The fourth proportional to 8,501.20, 12,737.40 and 4,109.20 is: 6,156.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,501.20 : 12,737.40 = 4,109.20 : x
  2. Step 2: Convert to fraction form
    8,501.20/12,737.40 = 4,109.20/x
  3. Step 3: Cross multiply
    8,501.20x = 12,737.40 × 4,109.20
  4. Step 4: Simplify right side
    8,501.20x = 52,340,524.08
  5. Step 5: Solve for x
    x = 52,340,524.08/8,501.20
  6. Step 6: Final answer
    x = 6,156.84

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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.