Home / 8,785.54-13,163.43-5,315.50

Finding the Fourth Proportional to 8,785.54, 13,163.43 and 5,315.50

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Solution

The fourth proportional to 8,785.54, 13,163.43 and 5,315.50 is: 7,964.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.54 : 13,163.43 = 5,315.50 : x
  2. Step 2: Convert to fraction form
    8,785.54/13,163.43 = 5,315.50/x
  3. Step 3: Cross multiply
    8,785.54x = 13,163.43 × 5,315.50
  4. Step 4: Simplify right side
    8,785.54x = 69,970,212.17
  5. Step 5: Solve for x
    x = 69,970,212.17/8,785.54
  6. Step 6: Final answer
    x = 7,964.25

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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.