Home / 11,078.80-15,257.64-10,836.88

Finding the Fourth Proportional to 11,078.80, 15,257.64 and 10,836.88

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Solution

The fourth proportional to 11,078.80, 15,257.64 and 10,836.88 is: 14,924.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.80 : 15,257.64 = 10,836.88 : x
  2. Step 2: Convert to fraction form
    11,078.80/15,257.64 = 10,836.88/x
  3. Step 3: Cross multiply
    11,078.80x = 15,257.64 × 10,836.88
  4. Step 4: Simplify right side
    11,078.80x = 165,345,213.76
  5. Step 5: Solve for x
    x = 165,345,213.76/11,078.80
  6. Step 6: Final answer
    x = 14,924.47

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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.