Home / 13,744.76-18,949.28-10,921.50

Finding the Fourth Proportional to 13,744.76, 18,949.28 and 10,921.50

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Solution

The fourth proportional to 13,744.76, 18,949.28 and 10,921.50 is: 15,056.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.76 : 18,949.28 = 10,921.50 : x
  2. Step 2: Convert to fraction form
    13,744.76/18,949.28 = 10,921.50/x
  3. Step 3: Cross multiply
    13,744.76x = 18,949.28 × 10,921.50
  4. Step 4: Simplify right side
    13,744.76x = 206,954,506.91
  5. Step 5: Solve for x
    x = 206,954,506.91/13,744.76
  6. Step 6: Final answer
    x = 15,056.98

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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.