Home / 11,391.30-17,080.54-8,752.25

Finding the Fourth Proportional to 11,391.30, 17,080.54 and 8,752.25

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Solution

The fourth proportional to 11,391.30, 17,080.54 and 8,752.25 is: 13,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,391.30 : 17,080.54 = 8,752.25 : x
  2. Step 2: Convert to fraction form
    11,391.30/17,080.54 = 8,752.25/x
  3. Step 3: Cross multiply
    11,391.30x = 17,080.54 × 8,752.25
  4. Step 4: Simplify right side
    11,391.30x = 149,493,177.04
  5. Step 5: Solve for x
    x = 149,493,177.04/11,391.30
  6. Step 6: Final answer
    x = 13,123.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.