Home / 13,519.36-18,654.72-7,932.16

Finding the Fourth Proportional to 13,519.36, 18,654.72 and 7,932.16

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Solution

The fourth proportional to 13,519.36, 18,654.72 and 7,932.16 is: 10,945.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.36 : 18,654.72 = 7,932.16 : x
  2. Step 2: Convert to fraction form
    13,519.36/18,654.72 = 7,932.16/x
  3. Step 3: Cross multiply
    13,519.36x = 18,654.72 × 7,932.16
  4. Step 4: Simplify right side
    13,519.36x = 147,972,223.80
  5. Step 5: Solve for x
    x = 147,972,223.80/13,519.36
  6. Step 6: Final answer
    x = 10,945.21

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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.