Home / 9,421.38-13,002.11-5,229.63

Finding the Fourth Proportional to 9,421.38, 13,002.11 and 5,229.63

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Solution

The fourth proportional to 9,421.38, 13,002.11 and 5,229.63 is: 7,217.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.38 : 13,002.11 = 5,229.63 : x
  2. Step 2: Convert to fraction form
    9,421.38/13,002.11 = 5,229.63/x
  3. Step 3: Cross multiply
    9,421.38x = 13,002.11 × 5,229.63
  4. Step 4: Simplify right side
    9,421.38x = 67,996,224.52
  5. Step 5: Solve for x
    x = 67,996,224.52/9,421.38
  6. Step 6: Final answer
    x = 7,217.23

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Half scale
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Double scale
Find fourth proportional to 9,422.38, 13,003.49 and 5,230.63
Similar ratio
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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.