Home / 9,382.96-12,948.30-5,191.21

Finding the Fourth Proportional to 9,382.96, 12,948.30 and 5,191.21

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Solution

The fourth proportional to 9,382.96, 12,948.30 and 5,191.21 is: 7,163.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,382.96 : 12,948.30 = 5,191.21 : x
  2. Step 2: Convert to fraction form
    9,382.96/12,948.30 = 5,191.21/x
  3. Step 3: Cross multiply
    9,382.96x = 12,948.30 × 5,191.21
  4. Step 4: Simplify right side
    9,382.96x = 67,217,344.44
  5. Step 5: Solve for x
    x = 67,217,344.44/9,382.96
  6. Step 6: Final answer
    x = 7,163.77

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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.