Home / 13,619.28-20,394.36-10,877.52

Finding the Fourth Proportional to 13,619.28, 20,394.36 and 10,877.52

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Solution

The fourth proportional to 13,619.28, 20,394.36 and 10,877.52 is: 16,288.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.28 : 20,394.36 = 10,877.52 : x
  2. Step 2: Convert to fraction form
    13,619.28/20,394.36 = 10,877.52/x
  3. Step 3: Cross multiply
    13,619.28x = 20,394.36 × 10,877.52
  4. Step 4: Simplify right side
    13,619.28x = 221,840,058.79
  5. Step 5: Solve for x
    x = 221,840,058.79/13,619.28
  6. Step 6: Final answer
    x = 16,288.68

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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.