Home / 12,320.22-18,470.88-3,995.19

Finding the Fourth Proportional to 12,320.22, 18,470.88 and 3,995.19

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Solution

The fourth proportional to 12,320.22, 18,470.88 and 3,995.19 is: 5,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.22 : 18,470.88 = 3,995.19 : x
  2. Step 2: Convert to fraction form
    12,320.22/18,470.88 = 3,995.19/x
  3. Step 3: Cross multiply
    12,320.22x = 18,470.88 × 3,995.19
  4. Step 4: Simplify right side
    12,320.22x = 73,794,675.07
  5. Step 5: Solve for x
    x = 73,794,675.07/12,320.22
  6. Step 6: Final answer
    x = 5,989.72

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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.