Home / 15,218.32-20,995.50-11,248.96

Finding the Fourth Proportional to 15,218.32, 20,995.50 and 11,248.96

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Solution

The fourth proportional to 15,218.32, 20,995.50 and 11,248.96 is: 15,519.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218.32 : 20,995.50 = 11,248.96 : x
  2. Step 2: Convert to fraction form
    15,218.32/20,995.50 = 11,248.96/x
  3. Step 3: Cross multiply
    15,218.32x = 20,995.50 × 11,248.96
  4. Step 4: Simplify right side
    15,218.32x = 236,177,539.68
  5. Step 5: Solve for x
    x = 236,177,539.68/15,218.32
  6. Step 6: Final answer
    x = 15,519.29

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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.