Home / 8,156.35-11,244.77-5,318.11

Finding the Fourth Proportional to 8,156.35, 11,244.77 and 5,318.11

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Solution

The fourth proportional to 8,156.35, 11,244.77 and 5,318.11 is: 7,331.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.35 : 11,244.77 = 5,318.11 : x
  2. Step 2: Convert to fraction form
    8,156.35/11,244.77 = 5,318.11/x
  3. Step 3: Cross multiply
    8,156.35x = 11,244.77 × 5,318.11
  4. Step 4: Simplify right side
    8,156.35x = 59,800,923.78
  5. Step 5: Solve for x
    x = 59,800,923.78/8,156.35
  6. Step 6: Final answer
    x = 7,331.82

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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.