Home / 11,042.56-15,237.12-7,321.60

Finding the Fourth Proportional to 11,042.56, 15,237.12 and 7,321.60

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Solution

The fourth proportional to 11,042.56, 15,237.12 and 7,321.60 is: 10,102.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,042.56 : 15,237.12 = 7,321.60 : x
  2. Step 2: Convert to fraction form
    11,042.56/15,237.12 = 7,321.60/x
  3. Step 3: Cross multiply
    11,042.56x = 15,237.12 × 7,321.60
  4. Step 4: Simplify right side
    11,042.56x = 111,560,097.79
  5. Step 5: Solve for x
    x = 111,560,097.79/11,042.56
  6. Step 6: Final answer
    x = 10,102.74

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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.