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Finding the Fourth Proportional to 8,753.38, 12,079.38 and 4,774.57

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Solution

The fourth proportional to 8,753.38, 12,079.38 and 4,774.57 is: 6,588.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.38 : 12,079.38 = 4,774.57 : x
  2. Step 2: Convert to fraction form
    8,753.38/12,079.38 = 4,774.57/x
  3. Step 3: Cross multiply
    8,753.38x = 12,079.38 × 4,774.57
  4. Step 4: Simplify right side
    8,753.38x = 57,673,845.37
  5. Step 5: Solve for x
    x = 57,673,845.37/8,753.38
  6. Step 6: Final answer
    x = 6,588.75

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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.