Home / 8,859.31-13,289.33-3,312.09

Finding the Fourth Proportional to 8,859.31, 13,289.33 and 3,312.09

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Solution

The fourth proportional to 8,859.31, 13,289.33 and 3,312.09 is: 4,968.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.31 : 13,289.33 = 3,312.09 : x
  2. Step 2: Convert to fraction form
    8,859.31/13,289.33 = 3,312.09/x
  3. Step 3: Cross multiply
    8,859.31x = 13,289.33 × 3,312.09
  4. Step 4: Simplify right side
    8,859.31x = 44,015,465.28
  5. Step 5: Solve for x
    x = 44,015,465.28/8,859.31
  6. Step 6: Final answer
    x = 4,968.27

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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.