Home / 12,452.12-18,677.19-4,129.40

Finding the Fourth Proportional to 12,452.12, 18,677.19 and 4,129.40

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Solution

The fourth proportional to 12,452.12, 18,677.19 and 4,129.40 is: 6,193.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452.12 : 18,677.19 = 4,129.40 : x
  2. Step 2: Convert to fraction form
    12,452.12/18,677.19 = 4,129.40/x
  3. Step 3: Cross multiply
    12,452.12x = 18,677.19 × 4,129.40
  4. Step 4: Simplify right side
    12,452.12x = 77,125,588.39
  5. Step 5: Solve for x
    x = 77,125,588.39/12,452.12
  6. Step 6: Final answer
    x = 6,193.77

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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.