Home / 11,511.52-15,887.31-6,475.96

Finding the Fourth Proportional to 11,511.52, 15,887.31 and 6,475.96

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Solution

The fourth proportional to 11,511.52, 15,887.31 and 6,475.96 is: 8,937.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.52 : 15,887.31 = 6,475.96 : x
  2. Step 2: Convert to fraction form
    11,511.52/15,887.31 = 6,475.96/x
  3. Step 3: Cross multiply
    11,511.52x = 15,887.31 × 6,475.96
  4. Step 4: Simplify right side
    11,511.52x = 102,885,584.07
  5. Step 5: Solve for x
    x = 102,885,584.07/11,511.52
  6. Step 6: Final answer
    x = 8,937.62

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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.