Home / 8,084.36-12,118.86-3,157.16

Finding the Fourth Proportional to 8,084.36, 12,118.86 and 3,157.16

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Solution

The fourth proportional to 8,084.36, 12,118.86 and 3,157.16 is: 4,732.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,084.36 : 12,118.86 = 3,157.16 : x
  2. Step 2: Convert to fraction form
    8,084.36/12,118.86 = 3,157.16/x
  3. Step 3: Cross multiply
    8,084.36x = 12,118.86 × 3,157.16
  4. Step 4: Simplify right side
    8,084.36x = 38,261,180.04
  5. Step 5: Solve for x
    x = 38,261,180.04/8,084.36
  6. Step 6: Final answer
    x = 4,732.74

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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.