Home / 18,187.76-27,253.77-12,242.66

Finding the Fourth Proportional to 18,187.76, 27,253.77 and 12,242.66

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Solution

The fourth proportional to 18,187.76, 27,253.77 and 12,242.66 is: 18,345.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.76 : 27,253.77 = 12,242.66 : x
  2. Step 2: Convert to fraction form
    18,187.76/27,253.77 = 12,242.66/x
  3. Step 3: Cross multiply
    18,187.76x = 27,253.77 × 12,242.66
  4. Step 4: Simplify right side
    18,187.76x = 333,658,503.56
  5. Step 5: Solve for x
    x = 333,658,503.56/18,187.76
  6. Step 6: Final answer
    x = 18,345.23

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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.