Home / 8,711.45-12,026.78-5,735.94

Finding the Fourth Proportional to 8,711.45, 12,026.78 and 5,735.94

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Solution

The fourth proportional to 8,711.45, 12,026.78 and 5,735.94 is: 7,918.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.45 : 12,026.78 = 5,735.94 : x
  2. Step 2: Convert to fraction form
    8,711.45/12,026.78 = 5,735.94/x
  3. Step 3: Cross multiply
    8,711.45x = 12,026.78 × 5,735.94
  4. Step 4: Simplify right side
    8,711.45x = 68,984,836.20
  5. Step 5: Solve for x
    x = 68,984,836.20/8,711.45
  6. Step 6: Final answer
    x = 7,918.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.