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Finding the Fourth Proportional to 8,816.68, 12,159.94 and 7,494.76

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Solution

The fourth proportional to 8,816.68, 12,159.94 and 7,494.76 is: 10,336.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.68 : 12,159.94 = 7,494.76 : x
  2. Step 2: Convert to fraction form
    8,816.68/12,159.94 = 7,494.76/x
  3. Step 3: Cross multiply
    8,816.68x = 12,159.94 × 7,494.76
  4. Step 4: Simplify right side
    8,816.68x = 91,135,831.91
  5. Step 5: Solve for x
    x = 91,135,831.91/8,816.68
  6. Step 6: Final answer
    x = 10,336.75

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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.