Home / 8,176.95-12,255.71-4,478.49

Finding the Fourth Proportional to 8,176.95, 12,255.71 and 4,478.49

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Solution

The fourth proportional to 8,176.95, 12,255.71 and 4,478.49 is: 6,712.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,176.95 : 12,255.71 = 4,478.49 : x
  2. Step 2: Convert to fraction form
    8,176.95/12,255.71 = 4,478.49/x
  3. Step 3: Cross multiply
    8,176.95x = 12,255.71 × 4,478.49
  4. Step 4: Simplify right side
    8,176.95x = 54,887,052.29
  5. Step 5: Solve for x
    x = 54,887,052.29/8,176.95
  6. Step 6: Final answer
    x = 6,712.41

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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.