Home / 18,158.94-27,239.76-5,011.20

Finding the Fourth Proportional to 18,158.94, 27,239.76 and 5,011.20

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Solution

The fourth proportional to 18,158.94, 27,239.76 and 5,011.20 is: 7,517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158.94 : 27,239.76 = 5,011.20 : x
  2. Step 2: Convert to fraction form
    18,158.94/27,239.76 = 5,011.20/x
  3. Step 3: Cross multiply
    18,158.94x = 27,239.76 × 5,011.20
  4. Step 4: Simplify right side
    18,158.94x = 136,503,885.31
  5. Step 5: Solve for x
    x = 136,503,885.31/18,158.94
  6. Step 6: Final answer
    x = 7,517.17

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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.