Home / 8,742.18-12,060.07-5,910.55

Finding the Fourth Proportional to 8,742.18, 12,060.07 and 5,910.55

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Solution

The fourth proportional to 8,742.18, 12,060.07 and 5,910.55 is: 8,153.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.18 : 12,060.07 = 5,910.55 : x
  2. Step 2: Convert to fraction form
    8,742.18/12,060.07 = 5,910.55/x
  3. Step 3: Cross multiply
    8,742.18x = 12,060.07 × 5,910.55
  4. Step 4: Simplify right side
    8,742.18x = 71,281,646.74
  5. Step 5: Solve for x
    x = 71,281,646.74/8,742.18
  6. Step 6: Final answer
    x = 8,153.76

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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.