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Finding the Fourth Proportional to 12,134.66, 16,748.32 and 7,655.41

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Solution

The fourth proportional to 12,134.66, 16,748.32 and 7,655.41 is: 10,566.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134.66 : 16,748.32 = 7,655.41 : x
  2. Step 2: Convert to fraction form
    12,134.66/16,748.32 = 7,655.41/x
  3. Step 3: Cross multiply
    12,134.66x = 16,748.32 × 7,655.41
  4. Step 4: Simplify right side
    12,134.66x = 128,215,272.56
  5. Step 5: Solve for x
    x = 128,215,272.56/12,134.66
  6. Step 6: Final answer
    x = 10,566.04

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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.