Home / 18,389.28-25,378.92-10,837.95

Finding the Fourth Proportional to 18,389.28, 25,378.92 and 10,837.95

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Solution

The fourth proportional to 18,389.28, 25,378.92 and 10,837.95 is: 14,957.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.28 : 25,378.92 = 10,837.95 : x
  2. Step 2: Convert to fraction form
    18,389.28/25,378.92 = 10,837.95/x
  3. Step 3: Cross multiply
    18,389.28x = 25,378.92 × 10,837.95
  4. Step 4: Simplify right side
    18,389.28x = 275,055,513.60
  5. Step 5: Solve for x
    x = 275,055,513.60/18,389.28
  6. Step 6: Final answer
    x = 14,957.39

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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.