Home / 12,002.22-18,007.65-4,211.10

Finding the Fourth Proportional to 12,002.22, 18,007.65 and 4,211.10

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Solution

The fourth proportional to 12,002.22, 18,007.65 and 4,211.10 is: 6,318.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,002.22 : 18,007.65 = 4,211.10 : x
  2. Step 2: Convert to fraction form
    12,002.22/18,007.65 = 4,211.10/x
  3. Step 3: Cross multiply
    12,002.22x = 18,007.65 × 4,211.10
  4. Step 4: Simplify right side
    12,002.22x = 75,832,014.92
  5. Step 5: Solve for x
    x = 75,832,014.92/12,002.22
  6. Step 6: Final answer
    x = 6,318.17

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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.