Home / 14,887.92-20,531.94-11,120.22

Finding the Fourth Proportional to 14,887.92, 20,531.94 and 11,120.22

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Solution

The fourth proportional to 14,887.92, 20,531.94 and 11,120.22 is: 15,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,887.92 : 20,531.94 = 11,120.22 : x
  2. Step 2: Convert to fraction form
    14,887.92/20,531.94 = 11,120.22/x
  3. Step 3: Cross multiply
    14,887.92x = 20,531.94 × 11,120.22
  4. Step 4: Simplify right side
    14,887.92x = 228,319,689.83
  5. Step 5: Solve for x
    x = 228,319,689.83/14,887.92
  6. Step 6: Final answer
    x = 15,335.90

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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.