Home / 7,147.26-9,862.56-4,002.84

Finding the Fourth Proportional to 7,147.26, 9,862.56 and 4,002.84

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Solution

The fourth proportional to 7,147.26, 9,862.56 and 4,002.84 is: 5,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.26 : 9,862.56 = 4,002.84 : x
  2. Step 2: Convert to fraction form
    7,147.26/9,862.56 = 4,002.84/x
  3. Step 3: Cross multiply
    7,147.26x = 9,862.56 × 4,002.84
  4. Step 4: Simplify right side
    7,147.26x = 39,478,249.67
  5. Step 5: Solve for x
    x = 39,478,249.67/7,147.26
  6. Step 6: Final answer
    x = 5,523.55

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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.