Home / 12,143.22-18,213.98-4,352.28

Finding the Fourth Proportional to 12,143.22, 18,213.98 and 4,352.28

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Solution

The fourth proportional to 12,143.22, 18,213.98 and 4,352.28 is: 6,528.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143.22 : 18,213.98 = 4,352.28 : x
  2. Step 2: Convert to fraction form
    12,143.22/18,213.98 = 4,352.28/x
  3. Step 3: Cross multiply
    12,143.22x = 18,213.98 × 4,352.28
  4. Step 4: Simplify right side
    12,143.22x = 79,272,340.87
  5. Step 5: Solve for x
    x = 79,272,340.87/12,143.22
  6. Step 6: Final answer
    x = 6,528.12

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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.