Home / 12,214.60-18,329.10-4,422.40

Finding the Fourth Proportional to 12,214.60, 18,329.10 and 4,422.40

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Solution

The fourth proportional to 12,214.60, 18,329.10 and 4,422.40 is: 6,636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.60 : 18,329.10 = 4,422.40 : x
  2. Step 2: Convert to fraction form
    12,214.60/18,329.10 = 4,422.40/x
  3. Step 3: Cross multiply
    12,214.60x = 18,329.10 × 4,422.40
  4. Step 4: Simplify right side
    12,214.60x = 81,058,611.84
  5. Step 5: Solve for x
    x = 81,058,611.84/12,214.60
  6. Step 6: Final answer
    x = 6,636.21

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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.