Home / 8,125.35-12,186.28-2,579.19

Finding the Fourth Proportional to 8,125.35, 12,186.28 and 2,579.19

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Solution

The fourth proportional to 8,125.35, 12,186.28 and 2,579.19 is: 3,868.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.35 : 12,186.28 = 2,579.19 : x
  2. Step 2: Convert to fraction form
    8,125.35/12,186.28 = 2,579.19/x
  3. Step 3: Cross multiply
    8,125.35x = 12,186.28 × 2,579.19
  4. Step 4: Simplify right side
    8,125.35x = 31,430,731.51
  5. Step 5: Solve for x
    x = 31,430,731.51/8,125.35
  6. Step 6: Final answer
    x = 3,868.23

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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.