Home / 12,407.19-18,613.85-3,642.11

Finding the Fourth Proportional to 12,407.19, 18,613.85 and 3,642.11

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Solution

The fourth proportional to 12,407.19, 18,613.85 and 3,642.11 is: 5,464.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,407.19 : 18,613.85 = 3,642.11 : x
  2. Step 2: Convert to fraction form
    12,407.19/18,613.85 = 3,642.11/x
  3. Step 3: Cross multiply
    12,407.19x = 18,613.85 × 3,642.11
  4. Step 4: Simplify right side
    12,407.19x = 67,793,577.94
  5. Step 5: Solve for x
    x = 67,793,577.94/12,407.19
  6. Step 6: Final answer
    x = 5,464.06

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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.