Home / 11,203.30-15,449.09-7,425.16

Finding the Fourth Proportional to 11,203.30, 15,449.09 and 7,425.16

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Solution

The fourth proportional to 11,203.30, 15,449.09 and 7,425.16 is: 10,239.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,203.30 : 15,449.09 = 7,425.16 : x
  2. Step 2: Convert to fraction form
    11,203.30/15,449.09 = 7,425.16/x
  3. Step 3: Cross multiply
    11,203.30x = 15,449.09 × 7,425.16
  4. Step 4: Simplify right side
    11,203.30x = 114,711,965.10
  5. Step 5: Solve for x
    x = 114,711,965.10/11,203.30
  6. Step 6: Final answer
    x = 10,239.12

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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.