Home / 8,614.20-12,911.89-3,686.77

Finding the Fourth Proportional to 8,614.20, 12,911.89 and 3,686.77

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Solution

The fourth proportional to 8,614.20, 12,911.89 and 3,686.77 is: 5,526.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,614.20 : 12,911.89 = 3,686.77 : x
  2. Step 2: Convert to fraction form
    8,614.20/12,911.89 = 3,686.77/x
  3. Step 3: Cross multiply
    8,614.20x = 12,911.89 × 3,686.77
  4. Step 4: Simplify right side
    8,614.20x = 47,603,168.70
  5. Step 5: Solve for x
    x = 47,603,168.70/8,614.20
  6. Step 6: Final answer
    x = 5,526.13

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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.