Home / 18,303.56-27,436.28-8,930.78

Finding the Fourth Proportional to 18,303.56, 27,436.28 and 8,930.78

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Solution

The fourth proportional to 18,303.56, 27,436.28 and 8,930.78 is: 13,386.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,303.56 : 27,436.28 = 8,930.78 : x
  2. Step 2: Convert to fraction form
    18,303.56/27,436.28 = 8,930.78/x
  3. Step 3: Cross multiply
    18,303.56x = 27,436.28 × 8,930.78
  4. Step 4: Simplify right side
    18,303.56x = 245,027,380.70
  5. Step 5: Solve for x
    x = 245,027,380.70/18,303.56
  6. Step 6: Final answer
    x = 13,386.87

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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.