Home / 13,719.04-20,579.77-5,712.04

Finding the Fourth Proportional to 13,719.04, 20,579.77 and 5,712.04

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Solution

The fourth proportional to 13,719.04, 20,579.77 and 5,712.04 is: 8,568.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.04 : 20,579.77 = 5,712.04 : x
  2. Step 2: Convert to fraction form
    13,719.04/20,579.77 = 5,712.04/x
  3. Step 3: Cross multiply
    13,719.04x = 20,579.77 × 5,712.04
  4. Step 4: Simplify right side
    13,719.04x = 117,552,386.53
  5. Step 5: Solve for x
    x = 117,552,386.53/13,719.04
  6. Step 6: Final answer
    x = 8,568.56

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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.