Home / 12,344.12-18,511.20-4,551.20

Finding the Fourth Proportional to 12,344.12, 18,511.20 and 4,551.20

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Solution

The fourth proportional to 12,344.12, 18,511.20 and 4,551.20 is: 6,824.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,344.12 : 18,511.20 = 4,551.20 : x
  2. Step 2: Convert to fraction form
    12,344.12/18,511.20 = 4,551.20/x
  3. Step 3: Cross multiply
    12,344.12x = 18,511.20 × 4,551.20
  4. Step 4: Simplify right side
    12,344.12x = 84,248,173.44
  5. Step 5: Solve for x
    x = 84,248,173.44/12,344.12
  6. Step 6: Final answer
    x = 6,824.96

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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.