Home / 18,127.80-27,162.54-11,187.72

Finding the Fourth Proportional to 18,127.80, 27,162.54 and 11,187.72

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Solution

The fourth proportional to 18,127.80, 27,162.54 and 11,187.72 is: 16,763.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.80 : 27,162.54 = 11,187.72 : x
  2. Step 2: Convert to fraction form
    18,127.80/27,162.54 = 11,187.72/x
  3. Step 3: Cross multiply
    18,127.80x = 27,162.54 × 11,187.72
  4. Step 4: Simplify right side
    18,127.80x = 303,886,892.01
  5. Step 5: Solve for x
    x = 303,886,892.01/18,127.80
  6. Step 6: Final answer
    x = 16,763.58

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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.