Home / 12,182.48-18,272.19-3,418.07

Finding the Fourth Proportional to 12,182.48, 18,272.19 and 3,418.07

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Solution

The fourth proportional to 12,182.48, 18,272.19 and 3,418.07 is: 5,126.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.48 : 18,272.19 = 3,418.07 : x
  2. Step 2: Convert to fraction form
    12,182.48/18,272.19 = 3,418.07/x
  3. Step 3: Cross multiply
    12,182.48x = 18,272.19 × 3,418.07
  4. Step 4: Simplify right side
    12,182.48x = 62,455,624.47
  5. Step 5: Solve for x
    x = 62,455,624.47/12,182.48
  6. Step 6: Final answer
    x = 5,126.68

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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.