Home / 8,659.36-12,989.40-3,725.62

Finding the Fourth Proportional to 8,659.36, 12,989.40 and 3,725.62

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Solution

The fourth proportional to 8,659.36, 12,989.40 and 3,725.62 is: 5,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,659.36 : 12,989.40 = 3,725.62 : x
  2. Step 2: Convert to fraction form
    8,659.36/12,989.40 = 3,725.62/x
  3. Step 3: Cross multiply
    8,659.36x = 12,989.40 × 3,725.62
  4. Step 4: Simplify right side
    8,659.36x = 48,393,568.43
  5. Step 5: Solve for x
    x = 48,393,568.43/8,659.36
  6. Step 6: Final answer
    x = 5,588.58

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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.