Home / 8,869.38-12,242.10-5,238.61

Finding the Fourth Proportional to 8,869.38, 12,242.10 and 5,238.61

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Solution

The fourth proportional to 8,869.38, 12,242.10 and 5,238.61 is: 7,230.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.38 : 12,242.10 = 5,238.61 : x
  2. Step 2: Convert to fraction form
    8,869.38/12,242.10 = 5,238.61/x
  3. Step 3: Cross multiply
    8,869.38x = 12,242.10 × 5,238.61
  4. Step 4: Simplify right side
    8,869.38x = 64,131,587.48
  5. Step 5: Solve for x
    x = 64,131,587.48/8,869.38
  6. Step 6: Final answer
    x = 7,230.67

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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.