Home / 12,146.91-18,208.18-4,243.29

Finding the Fourth Proportional to 12,146.91, 18,208.18 and 4,243.29

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Solution

The fourth proportional to 12,146.91, 18,208.18 and 4,243.29 is: 6,360.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146.91 : 18,208.18 = 4,243.29 : x
  2. Step 2: Convert to fraction form
    12,146.91/18,208.18 = 4,243.29/x
  3. Step 3: Cross multiply
    12,146.91x = 18,208.18 × 4,243.29
  4. Step 4: Simplify right side
    12,146.91x = 77,262,588.11
  5. Step 5: Solve for x
    x = 77,262,588.11/12,146.91
  6. Step 6: Final answer
    x = 6,360.68

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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.