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Finding the Fourth Proportional to 8,799, 12,148.14 and 5,660.64

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Solution

The fourth proportional to 8,799, 12,148.14 and 5,660.64 is: 7,815.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,799 : 12,148.14 = 5,660.64 : x
  2. Step 2: Convert to fraction form
    8,799/12,148.14 = 5,660.64/x
  3. Step 3: Cross multiply
    8,799x = 12,148.14 × 5,660.64
  4. Step 4: Simplify right side
    8,799x = 68,766,247.21
  5. Step 5: Solve for x
    x = 68,766,247.21/8,799
  6. Step 6: Final answer
    x = 7,815.23

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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.