Home / 8,918.44-12,306.48-4,938.92

Finding the Fourth Proportional to 8,918.44, 12,306.48 and 4,938.92

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Solution

The fourth proportional to 8,918.44, 12,306.48 and 4,938.92 is: 6,815.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.44 : 12,306.48 = 4,938.92 : x
  2. Step 2: Convert to fraction form
    8,918.44/12,306.48 = 4,938.92/x
  3. Step 3: Cross multiply
    8,918.44x = 12,306.48 × 4,938.92
  4. Step 4: Simplify right side
    8,918.44x = 60,780,720.20
  5. Step 5: Solve for x
    x = 60,780,720.20/8,918.44
  6. Step 6: Final answer
    x = 6,815.17

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Double scale
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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.