Home / 8,142.38-11,237.04-4,605.60

Finding the Fourth Proportional to 8,142.38, 11,237.04 and 4,605.60

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Solution

The fourth proportional to 8,142.38, 11,237.04 and 4,605.60 is: 6,356.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.38 : 11,237.04 = 4,605.60 : x
  2. Step 2: Convert to fraction form
    8,142.38/11,237.04 = 4,605.60/x
  3. Step 3: Cross multiply
    8,142.38x = 11,237.04 × 4,605.60
  4. Step 4: Simplify right side
    8,142.38x = 51,753,311.42
  5. Step 5: Solve for x
    x = 51,753,311.42/8,142.38
  6. Step 6: Final answer
    x = 6,356.05

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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.