Home / 18,151.49-27,230.40-8,291.76

Finding the Fourth Proportional to 18,151.49, 27,230.40 and 8,291.76

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Solution

The fourth proportional to 18,151.49, 27,230.40 and 8,291.76 is: 12,439.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.49 : 27,230.40 = 8,291.76 : x
  2. Step 2: Convert to fraction form
    18,151.49/27,230.40 = 8,291.76/x
  3. Step 3: Cross multiply
    18,151.49x = 27,230.40 × 8,291.76
  4. Step 4: Simplify right side
    18,151.49x = 225,787,941.50
  5. Step 5: Solve for x
    x = 225,787,941.50/18,151.49
  6. Step 6: Final answer
    x = 12,439.09

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1.5x scale

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.