Home / 12,193.87-18,291.51-3,429.46

Finding the Fourth Proportional to 12,193.87, 18,291.51 and 3,429.46

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Solution

The fourth proportional to 12,193.87, 18,291.51 and 3,429.46 is: 5,144.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,193.87 : 18,291.51 = 3,429.46 : x
  2. Step 2: Convert to fraction form
    12,193.87/18,291.51 = 3,429.46/x
  3. Step 3: Cross multiply
    12,193.87x = 18,291.51 × 3,429.46
  4. Step 4: Simplify right side
    12,193.87x = 62,730,001.88
  5. Step 5: Solve for x
    x = 62,730,001.88/12,193.87
  6. Step 6: Final answer
    x = 5,144.39

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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.