Home / 7,490.20-11,221.26-6,265.48

Finding the Fourth Proportional to 7,490.20, 11,221.26 and 6,265.48

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Solution

The fourth proportional to 7,490.20, 11,221.26 and 6,265.48 is: 9,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.20 : 11,221.26 = 6,265.48 : x
  2. Step 2: Convert to fraction form
    7,490.20/11,221.26 = 6,265.48/x
  3. Step 3: Cross multiply
    7,490.20x = 11,221.26 × 6,265.48
  4. Step 4: Simplify right side
    7,490.20x = 70,306,580.10
  5. Step 5: Solve for x
    x = 70,306,580.10/7,490.20
  6. Step 6: Final answer
    x = 9,386.48

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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.