Home / 11,507.27-15,885.38-8,675.79

Finding the Fourth Proportional to 11,507.27, 15,885.38 and 8,675.79

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Solution

The fourth proportional to 11,507.27, 15,885.38 and 8,675.79 is: 11,976.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,507.27 : 15,885.38 = 8,675.79 : x
  2. Step 2: Convert to fraction form
    11,507.27/15,885.38 = 8,675.79/x
  3. Step 3: Cross multiply
    11,507.27x = 15,885.38 × 8,675.79
  4. Step 4: Simplify right side
    11,507.27x = 137,818,220.95
  5. Step 5: Solve for x
    x = 137,818,220.95/11,507.27
  6. Step 6: Final answer
    x = 11,976.62

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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.