Home / 11,248.12-15,506.36-8,725.78

Finding the Fourth Proportional to 11,248.12, 15,506.36 and 8,725.78

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Solution

The fourth proportional to 11,248.12, 15,506.36 and 8,725.78 is: 12,029.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,248.12 : 15,506.36 = 8,725.78 : x
  2. Step 2: Convert to fraction form
    11,248.12/15,506.36 = 8,725.78/x
  3. Step 3: Cross multiply
    11,248.12x = 15,506.36 × 8,725.78
  4. Step 4: Simplify right side
    11,248.12x = 135,305,031.75
  5. Step 5: Solve for x
    x = 135,305,031.75/11,248.12
  6. Step 6: Final answer
    x = 12,029.13

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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.