Home / 8,285.60-11,428.92-5,453.12

Finding the Fourth Proportional to 8,285.60, 11,428.92 and 5,453.12

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Solution

The fourth proportional to 8,285.60, 11,428.92 and 5,453.12 is: 7,521.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.60 : 11,428.92 = 5,453.12 : x
  2. Step 2: Convert to fraction form
    8,285.60/11,428.92 = 5,453.12/x
  3. Step 3: Cross multiply
    8,285.60x = 11,428.92 × 5,453.12
  4. Step 4: Simplify right side
    8,285.60x = 62,323,272.23
  5. Step 5: Solve for x
    x = 62,323,272.23/8,285.60
  6. Step 6: Final answer
    x = 7,521.88

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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.