Home / 8,037.68-11,081.76-6,616.40

Finding the Fourth Proportional to 8,037.68, 11,081.76 and 6,616.40

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Solution

The fourth proportional to 8,037.68, 11,081.76 and 6,616.40 is: 9,122.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,037.68 : 11,081.76 = 6,616.40 : x
  2. Step 2: Convert to fraction form
    8,037.68/11,081.76 = 6,616.40/x
  3. Step 3: Cross multiply
    8,037.68x = 11,081.76 × 6,616.40
  4. Step 4: Simplify right side
    8,037.68x = 73,321,356.86
  5. Step 5: Solve for x
    x = 73,321,356.86/8,037.68
  6. Step 6: Final answer
    x = 9,122.20

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Half 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.