Home / 8,106.98-12,153.29-3,180.15

Finding the Fourth Proportional to 8,106.98, 12,153.29 and 3,180.15

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Solution

The fourth proportional to 8,106.98, 12,153.29 and 3,180.15 is: 4,767.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.98 : 12,153.29 = 3,180.15 : x
  2. Step 2: Convert to fraction form
    8,106.98/12,153.29 = 3,180.15/x
  3. Step 3: Cross multiply
    8,106.98x = 12,153.29 × 3,180.15
  4. Step 4: Simplify right side
    8,106.98x = 38,649,269.29
  5. Step 5: Solve for x
    x = 38,649,269.29/8,106.98
  6. Step 6: Final answer
    x = 4,767.41

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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.