Home / 12,200.90-18,304.35-3,435.70

Finding the Fourth Proportional to 12,200.90, 18,304.35 and 3,435.70

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Solution

The fourth proportional to 12,200.90, 18,304.35 and 3,435.70 is: 5,154.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.90 : 18,304.35 = 3,435.70 : x
  2. Step 2: Convert to fraction form
    12,200.90/18,304.35 = 3,435.70/x
  3. Step 3: Cross multiply
    12,200.90x = 18,304.35 × 3,435.70
  4. Step 4: Simplify right side
    12,200.90x = 62,888,255.30
  5. Step 5: Solve for x
    x = 62,888,255.30/12,200.90
  6. Step 6: Final answer
    x = 5,154.39

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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.