Home / 7,147.20-9,862.58-4,002.96

Finding the Fourth Proportional to 7,147.20, 9,862.58 and 4,002.96

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Solution

The fourth proportional to 7,147.20, 9,862.58 and 4,002.96 is: 5,523.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.20 : 9,862.58 = 4,002.96 : x
  2. Step 2: Convert to fraction form
    7,147.20/9,862.58 = 4,002.96/x
  3. Step 3: Cross multiply
    7,147.20x = 9,862.58 × 4,002.96
  4. Step 4: Simplify right side
    7,147.20x = 39,479,513.24
  5. Step 5: Solve for x
    x = 39,479,513.24/7,147.20
  6. Step 6: Final answer
    x = 5,523.77

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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.