Home / 13,769.13-19,001.30-7,481.55

Finding the Fourth Proportional to 13,769.13, 19,001.30 and 7,481.55

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Solution

The fourth proportional to 13,769.13, 19,001.30 and 7,481.55 is: 10,324.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.13 : 19,001.30 = 7,481.55 : x
  2. Step 2: Convert to fraction form
    13,769.13/19,001.30 = 7,481.55/x
  3. Step 3: Cross multiply
    13,769.13x = 19,001.30 × 7,481.55
  4. Step 4: Simplify right side
    13,769.13x = 142,159,138.61
  5. Step 5: Solve for x
    x = 142,159,138.61/13,769.13
  6. Step 6: Final answer
    x = 10,324.48

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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.