Home / 8,828.15-13,238.10-3,899.21

Finding the Fourth Proportional to 8,828.15, 13,238.10 and 3,899.21

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Solution

The fourth proportional to 8,828.15, 13,238.10 and 3,899.21 is: 5,846.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,828.15 : 13,238.10 = 3,899.21 : x
  2. Step 2: Convert to fraction form
    8,828.15/13,238.10 = 3,899.21/x
  3. Step 3: Cross multiply
    8,828.15x = 13,238.10 × 3,899.21
  4. Step 4: Simplify right side
    8,828.15x = 51,618,065.71
  5. Step 5: Solve for x
    x = 51,618,065.71/8,828.15
  6. Step 6: Final answer
    x = 5,846.99

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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.