Home / 11,054.28-16,565.18-8,719.88

Finding the Fourth Proportional to 11,054.28, 16,565.18 and 8,719.88

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Solution

The fourth proportional to 11,054.28, 16,565.18 and 8,719.88 is: 13,067.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,054.28 : 16,565.18 = 8,719.88 : x
  2. Step 2: Convert to fraction form
    11,054.28/16,565.18 = 8,719.88/x
  3. Step 3: Cross multiply
    11,054.28x = 16,565.18 × 8,719.88
  4. Step 4: Simplify right side
    11,054.28x = 144,446,381.78
  5. Step 5: Solve for x
    x = 144,446,381.78/11,054.28
  6. Step 6: Final answer
    x = 13,067.01

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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.