Home / 9,153.12-12,631.32-4,961.38

Finding the Fourth Proportional to 9,153.12, 12,631.32 and 4,961.38

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Solution

The fourth proportional to 9,153.12, 12,631.32 and 4,961.38 is: 6,846.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.12 : 12,631.32 = 4,961.38 : x
  2. Step 2: Convert to fraction form
    9,153.12/12,631.32 = 4,961.38/x
  3. Step 3: Cross multiply
    9,153.12x = 12,631.32 × 4,961.38
  4. Step 4: Simplify right side
    9,153.12x = 62,668,778.42
  5. Step 5: Solve for x
    x = 62,668,778.42/9,153.12
  6. Step 6: Final answer
    x = 6,846.71

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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.