Home / 6,489.20-9,724.60-5,021.52

Finding the Fourth Proportional to 6,489.20, 9,724.60 and 5,021.52

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Solution

The fourth proportional to 6,489.20, 9,724.60 and 5,021.52 is: 7,525.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,489.20 : 9,724.60 = 5,021.52 : x
  2. Step 2: Convert to fraction form
    6,489.20/9,724.60 = 5,021.52/x
  3. Step 3: Cross multiply
    6,489.20x = 9,724.60 × 5,021.52
  4. Step 4: Simplify right side
    6,489.20x = 48,832,273.39
  5. Step 5: Solve for x
    x = 48,832,273.39/6,489.20
  6. Step 6: Final answer
    x = 7,525.16

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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.