Home / 8,815.23-13,223.66-2,971.89

Finding the Fourth Proportional to 8,815.23, 13,223.66 and 2,971.89

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Solution

The fourth proportional to 8,815.23, 13,223.66 and 2,971.89 is: 4,458.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.23 : 13,223.66 = 2,971.89 : x
  2. Step 2: Convert to fraction form
    8,815.23/13,223.66 = 2,971.89/x
  3. Step 3: Cross multiply
    8,815.23x = 13,223.66 × 2,971.89
  4. Step 4: Simplify right side
    8,815.23x = 39,299,248.06
  5. Step 5: Solve for x
    x = 39,299,248.06/8,815.23
  6. Step 6: Final answer
    x = 4,458.11

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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.