Home / 8,378.85-12,568.32-2,832.23

Finding the Fourth Proportional to 8,378.85, 12,568.32 and 2,832.23

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Solution

The fourth proportional to 8,378.85, 12,568.32 and 2,832.23 is: 4,248.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.85 : 12,568.32 = 2,832.23 : x
  2. Step 2: Convert to fraction form
    8,378.85/12,568.32 = 2,832.23/x
  3. Step 3: Cross multiply
    8,378.85x = 12,568.32 × 2,832.23
  4. Step 4: Simplify right side
    8,378.85x = 35,596,295.95
  5. Step 5: Solve for x
    x = 35,596,295.95/8,378.85
  6. Step 6: Final answer
    x = 4,248.35

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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.