Home / 11,103.12-15,326.28-9,524.88

Finding the Fourth Proportional to 11,103.12, 15,326.28 and 9,524.88

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Solution

The fourth proportional to 11,103.12, 15,326.28 and 9,524.88 is: 13,147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103.12 : 15,326.28 = 9,524.88 : x
  2. Step 2: Convert to fraction form
    11,103.12/15,326.28 = 9,524.88/x
  3. Step 3: Cross multiply
    11,103.12x = 15,326.28 × 9,524.88
  4. Step 4: Simplify right side
    11,103.12x = 145,980,977.85
  5. Step 5: Solve for x
    x = 145,980,977.85/11,103.12
  6. Step 6: Final answer
    x = 13,147.74

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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.