Home / 8,286.48-11,435.76-5,487.12

Finding the Fourth Proportional to 8,286.48, 11,435.76 and 5,487.12

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Solution

The fourth proportional to 8,286.48, 11,435.76 and 5,487.12 is: 7,572.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286.48 : 11,435.76 = 5,487.12 : x
  2. Step 2: Convert to fraction form
    8,286.48/11,435.76 = 5,487.12/x
  3. Step 3: Cross multiply
    8,286.48x = 11,435.76 × 5,487.12
  4. Step 4: Simplify right side
    8,286.48x = 62,749,387.41
  5. Step 5: Solve for x
    x = 62,749,387.41/8,286.48
  6. Step 6: Final answer
    x = 7,572.50

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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.