Home / 15,208.29-20,997.33-13,612.20

Finding the Fourth Proportional to 15,208.29, 20,997.33 and 13,612.20

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Solution

The fourth proportional to 15,208.29, 20,997.33 and 13,612.20 is: 18,793.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,208.29 : 20,997.33 = 13,612.20 : x
  2. Step 2: Convert to fraction form
    15,208.29/20,997.33 = 13,612.20/x
  3. Step 3: Cross multiply
    15,208.29x = 20,997.33 × 13,612.20
  4. Step 4: Simplify right side
    15,208.29x = 285,819,855.43
  5. Step 5: Solve for x
    x = 285,819,855.43/15,208.29
  6. Step 6: Final answer
    x = 18,793.69

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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.