Home / 11,209.24-15,454.29-9,185.12

Finding the Fourth Proportional to 11,209.24, 15,454.29 and 9,185.12

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Solution

The fourth proportional to 11,209.24, 15,454.29 and 9,185.12 is: 12,663.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.24 : 15,454.29 = 9,185.12 : x
  2. Step 2: Convert to fraction form
    11,209.24/15,454.29 = 9,185.12/x
  3. Step 3: Cross multiply
    11,209.24x = 15,454.29 × 9,185.12
  4. Step 4: Simplify right side
    11,209.24x = 141,949,508.16
  5. Step 5: Solve for x
    x = 141,949,508.16/11,209.24
  6. Step 6: Final answer
    x = 12,663.62

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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.