Home / 8,124.28-12,187.14-2,578.84

Finding the Fourth Proportional to 8,124.28, 12,187.14 and 2,578.84

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Solution

The fourth proportional to 8,124.28, 12,187.14 and 2,578.84 is: 3,868.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.28 : 12,187.14 = 2,578.84 : x
  2. Step 2: Convert to fraction form
    8,124.28/12,187.14 = 2,578.84/x
  3. Step 3: Cross multiply
    8,124.28x = 12,187.14 × 2,578.84
  4. Step 4: Simplify right side
    8,124.28x = 31,428,684.12
  5. Step 5: Solve for x
    x = 31,428,684.12/8,124.28
  6. Step 6: Final answer
    x = 3,868.49

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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.