Home / 12,251.90-18,378.48-4,460.42

Finding the Fourth Proportional to 12,251.90, 18,378.48 and 4,460.42

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Solution

The fourth proportional to 12,251.90, 18,378.48 and 4,460.42 is: 6,690.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.90 : 18,378.48 = 4,460.42 : x
  2. Step 2: Convert to fraction form
    12,251.90/18,378.48 = 4,460.42/x
  3. Step 3: Cross multiply
    12,251.90x = 18,378.48 × 4,460.42
  4. Step 4: Simplify right side
    12,251.90x = 81,975,739.76
  5. Step 5: Solve for x
    x = 81,975,739.76/12,251.90
  6. Step 6: Final answer
    x = 6,690.86

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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.