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Finding the Fourth Proportional to 8,700.66, 11,932.97 and 8,343.54

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Solution

The fourth proportional to 8,700.66, 11,932.97 and 8,343.54 is: 11,443.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.66 : 11,932.97 = 8,343.54 : x
  2. Step 2: Convert to fraction form
    8,700.66/11,932.97 = 8,343.54/x
  3. Step 3: Cross multiply
    8,700.66x = 11,932.97 × 8,343.54
  4. Step 4: Simplify right side
    8,700.66x = 99,563,170.80
  5. Step 5: Solve for x
    x = 99,563,170.80/8,700.66
  6. Step 6: Final answer
    x = 11,443.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.