Home / 10,644.01-15,974.21-8,569.09

Finding the Fourth Proportional to 10,644.01, 15,974.21 and 8,569.09

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Solution

The fourth proportional to 10,644.01, 15,974.21 and 8,569.09 is: 12,860.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,644.01 : 15,974.21 = 8,569.09 : x
  2. Step 2: Convert to fraction form
    10,644.01/15,974.21 = 8,569.09/x
  3. Step 3: Cross multiply
    10,644.01x = 15,974.21 × 8,569.09
  4. Step 4: Simplify right side
    10,644.01x = 136,884,484.56
  5. Step 5: Solve for x
    x = 136,884,484.56/10,644.01
  6. Step 6: Final answer
    x = 12,860.24

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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.