Home / 8,600.13-12,900.18-5,677.75

Finding the Fourth Proportional to 8,600.13, 12,900.18 and 5,677.75

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Solution

The fourth proportional to 8,600.13, 12,900.18 and 5,677.75 is: 8,516.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,600.13 : 12,900.18 = 5,677.75 : x
  2. Step 2: Convert to fraction form
    8,600.13/12,900.18 = 5,677.75/x
  3. Step 3: Cross multiply
    8,600.13x = 12,900.18 × 5,677.75
  4. Step 4: Simplify right side
    8,600.13x = 73,243,964.74
  5. Step 5: Solve for x
    x = 73,243,964.74/8,600.13
  6. Step 6: Final answer
    x = 8,516.61

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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.