Home / 11,511.20-15,876.96-8,527.16

Finding the Fourth Proportional to 11,511.20, 15,876.96 and 8,527.16

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Solution

The fourth proportional to 11,511.20, 15,876.96 and 8,527.16 is: 11,761.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.20 : 15,876.96 = 8,527.16 : x
  2. Step 2: Convert to fraction form
    11,511.20/15,876.96 = 8,527.16/x
  3. Step 3: Cross multiply
    11,511.20x = 15,876.96 × 8,527.16
  4. Step 4: Simplify right side
    11,511.20x = 135,385,378.23
  5. Step 5: Solve for x
    x = 135,385,378.23/11,511.20
  6. Step 6: Final answer
    x = 11,761.19

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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.