Home / 18,362.28-25,343.61-11,655.90

Finding the Fourth Proportional to 18,362.28, 25,343.61 and 11,655.90

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Solution

The fourth proportional to 18,362.28, 25,343.61 and 11,655.90 is: 16,087.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362.28 : 25,343.61 = 11,655.90 : x
  2. Step 2: Convert to fraction form
    18,362.28/25,343.61 = 11,655.90/x
  3. Step 3: Cross multiply
    18,362.28x = 25,343.61 × 11,655.90
  4. Step 4: Simplify right side
    18,362.28x = 295,402,583.80
  5. Step 5: Solve for x
    x = 295,402,583.80/18,362.28
  6. Step 6: Final answer
    x = 16,087.47

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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.