Home / 9,661.20-13,334.56-5,885.62

Finding the Fourth Proportional to 9,661.20, 13,334.56 and 5,885.62

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Solution

The fourth proportional to 9,661.20, 13,334.56 and 5,885.62 is: 8,123.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661.20 : 13,334.56 = 5,885.62 : x
  2. Step 2: Convert to fraction form
    9,661.20/13,334.56 = 5,885.62/x
  3. Step 3: Cross multiply
    9,661.20x = 13,334.56 × 5,885.62
  4. Step 4: Simplify right side
    9,661.20x = 78,482,153.03
  5. Step 5: Solve for x
    x = 78,482,153.03/9,661.20
  6. Step 6: Final answer
    x = 8,123.44

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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.