Home / 18,155.80-27,233.70-11,562.40

Finding the Fourth Proportional to 18,155.80, 27,233.70 and 11,562.40

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Solution

The fourth proportional to 18,155.80, 27,233.70 and 11,562.40 is: 17,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.80 : 27,233.70 = 11,562.40 : x
  2. Step 2: Convert to fraction form
    18,155.80/27,233.70 = 11,562.40/x
  3. Step 3: Cross multiply
    18,155.80x = 27,233.70 × 11,562.40
  4. Step 4: Simplify right side
    18,155.80x = 314,886,932.88
  5. Step 5: Solve for x
    x = 314,886,932.88/18,155.80
  6. Step 6: Final answer
    x = 17,343.60

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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.