Home / 11,422.32-15,750.68-8,899.96

Finding the Fourth Proportional to 11,422.32, 15,750.68 and 8,899.96

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Solution

The fourth proportional to 11,422.32, 15,750.68 and 8,899.96 is: 12,272.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,422.32 : 15,750.68 = 8,899.96 : x
  2. Step 2: Convert to fraction form
    11,422.32/15,750.68 = 8,899.96/x
  3. Step 3: Cross multiply
    11,422.32x = 15,750.68 × 8,899.96
  4. Step 4: Simplify right side
    11,422.32x = 140,180,421.97
  5. Step 5: Solve for x
    x = 140,180,421.97/11,422.32
  6. Step 6: Final answer
    x = 12,272.50

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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.