Home / 8,816.17-12,166.70-5,278.71

Finding the Fourth Proportional to 8,816.17, 12,166.70 and 5,278.71

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Solution

The fourth proportional to 8,816.17, 12,166.70 and 5,278.71 is: 7,284.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.17 : 12,166.70 = 5,278.71 : x
  2. Step 2: Convert to fraction form
    8,816.17/12,166.70 = 5,278.71/x
  3. Step 3: Cross multiply
    8,816.17x = 12,166.70 × 5,278.71
  4. Step 4: Simplify right side
    8,816.17x = 64,224,393.73
  5. Step 5: Solve for x
    x = 64,224,393.73/8,816.17
  6. Step 6: Final answer
    x = 7,284.84

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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.