Home / 8,584.60-12,878.35-2,660.13

Finding the Fourth Proportional to 8,584.60, 12,878.35 and 2,660.13

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Solution

The fourth proportional to 8,584.60, 12,878.35 and 2,660.13 is: 3,990.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,584.60 : 12,878.35 = 2,660.13 : x
  2. Step 2: Convert to fraction form
    8,584.60/12,878.35 = 2,660.13/x
  3. Step 3: Cross multiply
    8,584.60x = 12,878.35 × 2,660.13
  4. Step 4: Simplify right side
    8,584.60x = 34,258,085.19
  5. Step 5: Solve for x
    x = 34,258,085.19/8,584.60
  6. Step 6: Final answer
    x = 3,990.64

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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.