Home / 7,132.72-9,839.88-4,615.65

Finding the Fourth Proportional to 7,132.72, 9,839.88 and 4,615.65

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Solution

The fourth proportional to 7,132.72, 9,839.88 and 4,615.65 is: 6,367.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,132.72 : 9,839.88 = 4,615.65 : x
  2. Step 2: Convert to fraction form
    7,132.72/9,839.88 = 4,615.65/x
  3. Step 3: Cross multiply
    7,132.72x = 9,839.88 × 4,615.65
  4. Step 4: Simplify right side
    7,132.72x = 45,417,442.12
  5. Step 5: Solve for x
    x = 45,417,442.12/7,132.72
  6. Step 6: Final answer
    x = 6,367.48

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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.