Home / 13,719.50-18,933.29-7,751.04

Finding the Fourth Proportional to 13,719.50, 18,933.29 and 7,751.04

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Solution

The fourth proportional to 13,719.50, 18,933.29 and 7,751.04 is: 10,696.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.50 : 18,933.29 = 7,751.04 : x
  2. Step 2: Convert to fraction form
    13,719.50/18,933.29 = 7,751.04/x
  3. Step 3: Cross multiply
    13,719.50x = 18,933.29 × 7,751.04
  4. Step 4: Simplify right side
    13,719.50x = 146,752,692.13
  5. Step 5: Solve for x
    x = 146,752,692.13/13,719.50
  6. Step 6: Final answer
    x = 10,696.65

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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.