Home / 11,572.20-15,959.70-9,050.40

Finding the Fourth Proportional to 11,572.20, 15,959.70 and 9,050.40

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Solution

The fourth proportional to 11,572.20, 15,959.70 and 9,050.40 is: 12,481.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,572.20 : 15,959.70 = 9,050.40 : x
  2. Step 2: Convert to fraction form
    11,572.20/15,959.70 = 9,050.40/x
  3. Step 3: Cross multiply
    11,572.20x = 15,959.70 × 9,050.40
  4. Step 4: Simplify right side
    11,572.20x = 144,441,668.88
  5. Step 5: Solve for x
    x = 144,441,668.88/11,572.20
  6. Step 6: Final answer
    x = 12,481.78

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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.