Home / 9,421.57-13,002.38-5,229.82

Finding the Fourth Proportional to 9,421.57, 13,002.38 and 5,229.82

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Solution

The fourth proportional to 9,421.57, 13,002.38 and 5,229.82 is: 7,217.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.57 : 13,002.38 = 5,229.82 : x
  2. Step 2: Convert to fraction form
    9,421.57/13,002.38 = 5,229.82/x
  3. Step 3: Cross multiply
    9,421.57x = 13,002.38 × 5,229.82
  4. Step 4: Simplify right side
    9,421.57x = 68,000,106.97
  5. Step 5: Solve for x
    x = 68,000,106.97/9,421.57
  6. Step 6: Final answer
    x = 7,217.49

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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.