Home / 8,385.61-11,571.22-5,028.57

Finding the Fourth Proportional to 8,385.61, 11,571.22 and 5,028.57

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Solution

The fourth proportional to 8,385.61, 11,571.22 and 5,028.57 is: 6,938.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.61 : 11,571.22 = 5,028.57 : x
  2. Step 2: Convert to fraction form
    8,385.61/11,571.22 = 5,028.57/x
  3. Step 3: Cross multiply
    8,385.61x = 11,571.22 × 5,028.57
  4. Step 4: Simplify right side
    8,385.61x = 58,186,689.76
  5. Step 5: Solve for x
    x = 58,186,689.76/8,385.61
  6. Step 6: Final answer
    x = 6,938.87

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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.