Home / 12,375.78-18,565.98-4,056.30

Finding the Fourth Proportional to 12,375.78, 18,565.98 and 4,056.30

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Solution

The fourth proportional to 12,375.78, 18,565.98 and 4,056.30 is: 6,085.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.78 : 18,565.98 = 4,056.30 : x
  2. Step 2: Convert to fraction form
    12,375.78/18,565.98 = 4,056.30/x
  3. Step 3: Cross multiply
    12,375.78x = 18,565.98 × 4,056.30
  4. Step 4: Simplify right side
    12,375.78x = 75,309,184.67
  5. Step 5: Solve for x
    x = 75,309,184.67/12,375.78
  6. Step 6: Final answer
    x = 6,085.21

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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.