Home / 11,989.15-16,552.12-10,659.18

Finding the Fourth Proportional to 11,989.15, 16,552.12 and 10,659.18

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Solution

The fourth proportional to 11,989.15, 16,552.12 and 10,659.18 is: 14,715.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.15 : 16,552.12 = 10,659.18 : x
  2. Step 2: Convert to fraction form
    11,989.15/16,552.12 = 10,659.18/x
  3. Step 3: Cross multiply
    11,989.15x = 16,552.12 × 10,659.18
  4. Step 4: Simplify right side
    11,989.15x = 176,431,890.41
  5. Step 5: Solve for x
    x = 176,431,890.41/11,989.15
  6. Step 6: Final answer
    x = 14,715.96

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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.