Home / 8,866.41-13,299.56-5,115.76

Finding the Fourth Proportional to 8,866.41, 13,299.56 and 5,115.76

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Solution

The fourth proportional to 8,866.41, 13,299.56 and 5,115.76 is: 7,673.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.41 : 13,299.56 = 5,115.76 : x
  2. Step 2: Convert to fraction form
    8,866.41/13,299.56 = 5,115.76/x
  3. Step 3: Cross multiply
    8,866.41x = 13,299.56 × 5,115.76
  4. Step 4: Simplify right side
    8,866.41x = 68,037,357.07
  5. Step 5: Solve for x
    x = 68,037,357.07/8,866.41
  6. Step 6: Final answer
    x = 7,673.61

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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.