Home / 12,424.08-18,636.28-3,659.18

Finding the Fourth Proportional to 12,424.08, 18,636.28 and 3,659.18

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Solution

The fourth proportional to 12,424.08, 18,636.28 and 3,659.18 is: 5,488.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.08 : 18,636.28 = 3,659.18 : x
  2. Step 2: Convert to fraction form
    12,424.08/18,636.28 = 3,659.18/x
  3. Step 3: Cross multiply
    12,424.08x = 18,636.28 × 3,659.18
  4. Step 4: Simplify right side
    12,424.08x = 68,193,400.72
  5. Step 5: Solve for x
    x = 68,193,400.72/12,424.08
  6. Step 6: Final answer
    x = 5,488.81

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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.