Home / 11,656.17-16,080.40-7,877.96

Finding the Fourth Proportional to 11,656.17, 16,080.40 and 7,877.96

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Solution

The fourth proportional to 11,656.17, 16,080.40 and 7,877.96 is: 10,868.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,656.17 : 16,080.40 = 7,877.96 : x
  2. Step 2: Convert to fraction form
    11,656.17/16,080.40 = 7,877.96/x
  3. Step 3: Cross multiply
    11,656.17x = 16,080.40 × 7,877.96
  4. Step 4: Simplify right side
    11,656.17x = 126,680,747.98
  5. Step 5: Solve for x
    x = 126,680,747.98/11,656.17
  6. Step 6: Final answer
    x = 10,868.13

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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.