Home / 12,216.08-18,317.28-3,894.59

Finding the Fourth Proportional to 12,216.08, 18,317.28 and 3,894.59

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Solution

The fourth proportional to 12,216.08, 18,317.28 and 3,894.59 is: 5,839.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.08 : 18,317.28 = 3,894.59 : x
  2. Step 2: Convert to fraction form
    12,216.08/18,317.28 = 3,894.59/x
  3. Step 3: Cross multiply
    12,216.08x = 18,317.28 × 3,894.59
  4. Step 4: Simplify right side
    12,216.08x = 71,338,295.52
  5. Step 5: Solve for x
    x = 71,338,295.52/12,216.08
  6. Step 6: Final answer
    x = 5,839.70

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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.