Home / 13,616.91-18,788.04-7,948.44

Finding the Fourth Proportional to 13,616.91, 18,788.04 and 7,948.44

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Solution

The fourth proportional to 13,616.91, 18,788.04 and 7,948.44 is: 10,966.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616.91 : 18,788.04 = 7,948.44 : x
  2. Step 2: Convert to fraction form
    13,616.91/18,788.04 = 7,948.44/x
  3. Step 3: Cross multiply
    13,616.91x = 18,788.04 × 7,948.44
  4. Step 4: Simplify right side
    13,616.91x = 149,335,608.66
  5. Step 5: Solve for x
    x = 149,335,608.66/13,616.91
  6. Step 6: Final answer
    x = 10,966.92

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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.