Home / 8,422.50-12,636.54-2,579.16

Finding the Fourth Proportional to 8,422.50, 12,636.54 and 2,579.16

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Solution

The fourth proportional to 8,422.50, 12,636.54 and 2,579.16 is: 3,869.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.50 : 12,636.54 = 2,579.16 : x
  2. Step 2: Convert to fraction form
    8,422.50/12,636.54 = 2,579.16/x
  3. Step 3: Cross multiply
    8,422.50x = 12,636.54 × 2,579.16
  4. Step 4: Simplify right side
    8,422.50x = 32,591,658.51
  5. Step 5: Solve for x
    x = 32,591,658.51/8,422.50
  6. Step 6: Final answer
    x = 3,869.59

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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.