Home / 15,019.30-20,726.76-8,213.52

Finding the Fourth Proportional to 15,019.30, 20,726.76 and 8,213.52

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Solution

The fourth proportional to 15,019.30, 20,726.76 and 8,213.52 is: 11,334.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.30 : 20,726.76 = 8,213.52 : x
  2. Step 2: Convert to fraction form
    15,019.30/20,726.76 = 8,213.52/x
  3. Step 3: Cross multiply
    15,019.30x = 20,726.76 × 8,213.52
  4. Step 4: Simplify right side
    15,019.30x = 170,239,657.80
  5. Step 5: Solve for x
    x = 170,239,657.80/15,019.30
  6. Step 6: Final answer
    x = 11,334.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.