Home / 11,188.63-15,442.55-8,531.29

Finding the Fourth Proportional to 11,188.63, 15,442.55 and 8,531.29

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Solution

The fourth proportional to 11,188.63, 15,442.55 and 8,531.29 is: 11,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.63 : 15,442.55 = 8,531.29 : x
  2. Step 2: Convert to fraction form
    11,188.63/15,442.55 = 8,531.29/x
  3. Step 3: Cross multiply
    11,188.63x = 15,442.55 × 8,531.29
  4. Step 4: Simplify right side
    11,188.63x = 131,744,829.73
  5. Step 5: Solve for x
    x = 131,744,829.73/11,188.63
  6. Step 6: Final answer
    x = 11,774.88

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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.