Home / 13,768.84-19,001.28-7,481.62

Finding the Fourth Proportional to 13,768.84, 19,001.28 and 7,481.62

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Solution

The fourth proportional to 13,768.84, 19,001.28 and 7,481.62 is: 10,324.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.84 : 19,001.28 = 7,481.62 : x
  2. Step 2: Convert to fraction form
    13,768.84/19,001.28 = 7,481.62/x
  3. Step 3: Cross multiply
    13,768.84x = 19,001.28 × 7,481.62
  4. Step 4: Simplify right side
    13,768.84x = 142,160,356.47
  5. Step 5: Solve for x
    x = 142,160,356.47/13,768.84
  6. Step 6: Final answer
    x = 10,324.79

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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.