Home / 18,948.49-28,422.53-7,261.71

Finding the Fourth Proportional to 18,948.49, 28,422.53 and 7,261.71

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Solution

The fourth proportional to 18,948.49, 28,422.53 and 7,261.71 is: 10,892.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.49 : 28,422.53 = 7,261.71 : x
  2. Step 2: Convert to fraction form
    18,948.49/28,422.53 = 7,261.71/x
  3. Step 3: Cross multiply
    18,948.49x = 28,422.53 × 7,261.71
  4. Step 4: Simplify right side
    18,948.49x = 206,396,285.15
  5. Step 5: Solve for x
    x = 206,396,285.15/18,948.49
  6. Step 6: Final answer
    x = 10,892.49

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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.