Home / 12,029.20-18,045.15-3,709.15

Finding the Fourth Proportional to 12,029.20, 18,045.15 and 3,709.15

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Solution

The fourth proportional to 12,029.20, 18,045.15 and 3,709.15 is: 5,564.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,029.20 : 18,045.15 = 3,709.15 : x
  2. Step 2: Convert to fraction form
    12,029.20/18,045.15 = 3,709.15/x
  3. Step 3: Cross multiply
    12,029.20x = 18,045.15 × 3,709.15
  4. Step 4: Simplify right side
    12,029.20x = 66,932,168.12
  5. Step 5: Solve for x
    x = 66,932,168.12/12,029.20
  6. Step 6: Final answer
    x = 5,564.14

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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.