Home / 12,589.60-18,883.28-4,269.42

Finding the Fourth Proportional to 12,589.60, 18,883.28 and 4,269.42

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Solution

The fourth proportional to 12,589.60, 18,883.28 and 4,269.42 is: 6,403.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589.60 : 18,883.28 = 4,269.42 : x
  2. Step 2: Convert to fraction form
    12,589.60/18,883.28 = 4,269.42/x
  3. Step 3: Cross multiply
    12,589.60x = 18,883.28 × 4,269.42
  4. Step 4: Simplify right side
    12,589.60x = 80,620,653.30
  5. Step 5: Solve for x
    x = 80,620,653.30/12,589.60
  6. Step 6: Final answer
    x = 6,403.75

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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.