Home / 11,612.22-16,027.47-7,139.85

Finding the Fourth Proportional to 11,612.22, 16,027.47 and 7,139.85

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Solution

The fourth proportional to 11,612.22, 16,027.47 and 7,139.85 is: 9,854.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,612.22 : 16,027.47 = 7,139.85 : x
  2. Step 2: Convert to fraction form
    11,612.22/16,027.47 = 7,139.85/x
  3. Step 3: Cross multiply
    11,612.22x = 16,027.47 × 7,139.85
  4. Step 4: Simplify right side
    11,612.22x = 114,433,731.68
  5. Step 5: Solve for x
    x = 114,433,731.68/11,612.22
  6. Step 6: Final answer
    x = 9,854.60

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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.