Home / 13,719.29-20,582.87-5,825.13

Finding the Fourth Proportional to 13,719.29, 20,582.87 and 5,825.13

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Solution

The fourth proportional to 13,719.29, 20,582.87 and 5,825.13 is: 8,739.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.29 : 20,582.87 = 5,825.13 : x
  2. Step 2: Convert to fraction form
    13,719.29/20,582.87 = 5,825.13/x
  3. Step 3: Cross multiply
    13,719.29x = 20,582.87 × 5,825.13
  4. Step 4: Simplify right side
    13,719.29x = 119,897,864.40
  5. Step 5: Solve for x
    x = 119,897,864.40/13,719.29
  6. Step 6: Final answer
    x = 8,739.37

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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.