Home / 13,540.74-20,306.26-5,216.58

Finding the Fourth Proportional to 13,540.74, 20,306.26 and 5,216.58

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Solution

The fourth proportional to 13,540.74, 20,306.26 and 5,216.58 is: 7,823.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.74 : 20,306.26 = 5,216.58 : x
  2. Step 2: Convert to fraction form
    13,540.74/20,306.26 = 5,216.58/x
  3. Step 3: Cross multiply
    13,540.74x = 20,306.26 × 5,216.58
  4. Step 4: Simplify right side
    13,540.74x = 105,929,229.79
  5. Step 5: Solve for x
    x = 105,929,229.79/13,540.74
  6. Step 6: Final answer
    x = 7,823.00

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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.