Home / 13,669.78-20,496.54-5,340.04

Finding the Fourth Proportional to 13,669.78, 20,496.54 and 5,340.04

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Solution

The fourth proportional to 13,669.78, 20,496.54 and 5,340.04 is: 8,006.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.78 : 20,496.54 = 5,340.04 : x
  2. Step 2: Convert to fraction form
    13,669.78/20,496.54 = 5,340.04/x
  3. Step 3: Cross multiply
    13,669.78x = 20,496.54 × 5,340.04
  4. Step 4: Simplify right side
    13,669.78x = 109,452,343.46
  5. Step 5: Solve for x
    x = 109,452,343.46/13,669.78
  6. Step 6: Final answer
    x = 8,006.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.