Home / 9,124.55-12,591.92-5,145.66

Finding the Fourth Proportional to 9,124.55, 12,591.92 and 5,145.66

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Solution

The fourth proportional to 9,124.55, 12,591.92 and 5,145.66 is: 7,101.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,124.55 : 12,591.92 = 5,145.66 : x
  2. Step 2: Convert to fraction form
    9,124.55/12,591.92 = 5,145.66/x
  3. Step 3: Cross multiply
    9,124.55x = 12,591.92 × 5,145.66
  4. Step 4: Simplify right side
    9,124.55x = 64,793,751.93
  5. Step 5: Solve for x
    x = 64,793,751.93/9,124.55
  6. Step 6: Final answer
    x = 7,101.04

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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.