Home / 11,144.36-15,385.38-9,962.60

Finding the Fourth Proportional to 11,144.36, 15,385.38 and 9,962.60

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Solution

The fourth proportional to 11,144.36, 15,385.38 and 9,962.60 is: 13,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.36 : 15,385.38 = 9,962.60 : x
  2. Step 2: Convert to fraction form
    11,144.36/15,385.38 = 9,962.60/x
  3. Step 3: Cross multiply
    11,144.36x = 15,385.38 × 9,962.60
  4. Step 4: Simplify right side
    11,144.36x = 153,278,386.79
  5. Step 5: Solve for x
    x = 153,278,386.79/11,144.36
  6. Step 6: Final answer
    x = 13,753.90

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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.