Home / 12,143.73-18,187.25-9,348.22

Finding the Fourth Proportional to 12,143.73, 18,187.25 and 9,348.22

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Solution

The fourth proportional to 12,143.73, 18,187.25 and 9,348.22 is: 14,000.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143.73 : 18,187.25 = 9,348.22 : x
  2. Step 2: Convert to fraction form
    12,143.73/18,187.25 = 9,348.22/x
  3. Step 3: Cross multiply
    12,143.73x = 18,187.25 × 9,348.22
  4. Step 4: Simplify right side
    12,143.73x = 170,018,436.29
  5. Step 5: Solve for x
    x = 170,018,436.29/12,143.73
  6. Step 6: Final answer
    x = 14,000.51

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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.