Home / 10,391.42-15,587.20-4,151.96

Finding the Fourth Proportional to 10,391.42, 15,587.20 and 4,151.96

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Solution

The fourth proportional to 10,391.42, 15,587.20 and 4,151.96 is: 6,227.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.42 : 15,587.20 = 4,151.96 : x
  2. Step 2: Convert to fraction form
    10,391.42/15,587.20 = 4,151.96/x
  3. Step 3: Cross multiply
    10,391.42x = 15,587.20 × 4,151.96
  4. Step 4: Simplify right side
    10,391.42x = 64,717,416.62
  5. Step 5: Solve for x
    x = 64,717,416.62/10,391.42
  6. Step 6: Final answer
    x = 6,227.97

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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.