Home / 12,203.58-18,306.51-3,438.48

Finding the Fourth Proportional to 12,203.58, 18,306.51 and 3,438.48

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Solution

The fourth proportional to 12,203.58, 18,306.51 and 3,438.48 is: 5,158.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,203.58 : 18,306.51 = 3,438.48 : x
  2. Step 2: Convert to fraction form
    12,203.58/18,306.51 = 3,438.48/x
  3. Step 3: Cross multiply
    12,203.58x = 18,306.51 × 3,438.48
  4. Step 4: Simplify right side
    12,203.58x = 62,946,568.50
  5. Step 5: Solve for x
    x = 62,946,568.50/12,203.58
  6. Step 6: Final answer
    x = 5,158.04

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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.