Home / 15,184.56-20,957.26-11,217.18

Finding the Fourth Proportional to 15,184.56, 20,957.26 and 11,217.18

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Solution

The fourth proportional to 15,184.56, 20,957.26 and 11,217.18 is: 15,481.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.56 : 20,957.26 = 11,217.18 : x
  2. Step 2: Convert to fraction form
    15,184.56/20,957.26 = 11,217.18/x
  3. Step 3: Cross multiply
    15,184.56x = 20,957.26 × 11,217.18
  4. Step 4: Simplify right side
    15,184.56x = 235,081,357.73
  5. Step 5: Solve for x
    x = 235,081,357.73/15,184.56
  6. Step 6: Final answer
    x = 15,481.60

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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.