Home / 9,540.04-13,171.38-7,775.86

Finding the Fourth Proportional to 9,540.04, 13,171.38 and 7,775.86

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Solution

The fourth proportional to 9,540.04, 13,171.38 and 7,775.86 is: 10,735.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,540.04 : 13,171.38 = 7,775.86 : x
  2. Step 2: Convert to fraction form
    9,540.04/13,171.38 = 7,775.86/x
  3. Step 3: Cross multiply
    9,540.04x = 13,171.38 × 7,775.86
  4. Step 4: Simplify right side
    9,540.04x = 102,418,806.89
  5. Step 5: Solve for x
    x = 102,418,806.89/9,540.04
  6. Step 6: Final answer
    x = 10,735.68

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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.