Home / 8,618.22-12,901.82-5,320.71

Finding the Fourth Proportional to 8,618.22, 12,901.82 and 5,320.71

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Solution

The fourth proportional to 8,618.22, 12,901.82 and 5,320.71 is: 7,965.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.22 : 12,901.82 = 5,320.71 : x
  2. Step 2: Convert to fraction form
    8,618.22/12,901.82 = 5,320.71/x
  3. Step 3: Cross multiply
    8,618.22x = 12,901.82 × 5,320.71
  4. Step 4: Simplify right side
    8,618.22x = 68,646,816.09
  5. Step 5: Solve for x
    x = 68,646,816.09/8,618.22
  6. Step 6: Final answer
    x = 7,965.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.