Home / 13,207.52-18,215.88-11,224.64

Finding the Fourth Proportional to 13,207.52, 18,215.88 and 11,224.64

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Solution

The fourth proportional to 13,207.52, 18,215.88 and 11,224.64 is: 15,481.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.52 : 18,215.88 = 11,224.64 : x
  2. Step 2: Convert to fraction form
    13,207.52/18,215.88 = 11,224.64/x
  3. Step 3: Cross multiply
    13,207.52x = 18,215.88 × 11,224.64
  4. Step 4: Simplify right side
    13,207.52x = 204,466,695.28
  5. Step 5: Solve for x
    x = 204,466,695.28/13,207.52
  6. Step 6: Final answer
    x = 15,481.08

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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.