Home / 13,565.30-20,347.76-8,229.75

Finding the Fourth Proportional to 13,565.30, 20,347.76 and 8,229.75

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Solution

The fourth proportional to 13,565.30, 20,347.76 and 8,229.75 is: 12,344.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.30 : 20,347.76 = 8,229.75 : x
  2. Step 2: Convert to fraction form
    13,565.30/20,347.76 = 8,229.75/x
  3. Step 3: Cross multiply
    13,565.30x = 20,347.76 × 8,229.75
  4. Step 4: Simplify right side
    13,565.30x = 167,456,967.57
  5. Step 5: Solve for x
    x = 167,456,967.57/13,565.30
  6. Step 6: Final answer
    x = 12,344.51

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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.