Home / 7,243.11-9,997.19-4,720.86

Finding the Fourth Proportional to 7,243.11, 9,997.19 and 4,720.86

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Solution

The fourth proportional to 7,243.11, 9,997.19 and 4,720.86 is: 6,515.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.11 : 9,997.19 = 4,720.86 : x
  2. Step 2: Convert to fraction form
    7,243.11/9,997.19 = 4,720.86/x
  3. Step 3: Cross multiply
    7,243.11x = 9,997.19 × 4,720.86
  4. Step 4: Simplify right side
    7,243.11x = 47,195,334.38
  5. Step 5: Solve for x
    x = 47,195,334.38/7,243.11
  6. Step 6: Final answer
    x = 6,515.89

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Half scale
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Double scale
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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.