Home / 8,125.17-12,189.51-2,578.96

Finding the Fourth Proportional to 8,125.17, 12,189.51 and 2,578.96

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Solution

The fourth proportional to 8,125.17, 12,189.51 and 2,578.96 is: 3,869.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.17 : 12,189.51 = 2,578.96 : x
  2. Step 2: Convert to fraction form
    8,125.17/12,189.51 = 2,578.96/x
  3. Step 3: Cross multiply
    8,125.17x = 12,189.51 × 2,578.96
  4. Step 4: Simplify right side
    8,125.17x = 31,436,258.71
  5. Step 5: Solve for x
    x = 31,436,258.71/8,125.17
  6. Step 6: Final answer
    x = 3,869.00

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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.