Home / 9,182.40-13,755.90-5,487.60

Finding the Fourth Proportional to 9,182.40, 13,755.90 and 5,487.60

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Solution

The fourth proportional to 9,182.40, 13,755.90 and 5,487.60 is: 8,220.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,182.40 : 13,755.90 = 5,487.60 : x
  2. Step 2: Convert to fraction form
    9,182.40/13,755.90 = 5,487.60/x
  3. Step 3: Cross multiply
    9,182.40x = 13,755.90 × 5,487.60
  4. Step 4: Simplify right side
    9,182.40x = 75,486,876.84
  5. Step 5: Solve for x
    x = 75,486,876.84/9,182.40
  6. Step 6: Final answer
    x = 8,220.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.