Home / 10,579.47-15,865.10-5,646.42

Finding the Fourth Proportional to 10,579.47, 15,865.10 and 5,646.42

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Solution

The fourth proportional to 10,579.47, 15,865.10 and 5,646.42 is: 8,467.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.47 : 15,865.10 = 5,646.42 : x
  2. Step 2: Convert to fraction form
    10,579.47/15,865.10 = 5,646.42/x
  3. Step 3: Cross multiply
    10,579.47x = 15,865.10 × 5,646.42
  4. Step 4: Simplify right side
    10,579.47x = 89,580,910.38
  5. Step 5: Solve for x
    x = 89,580,910.38/10,579.47
  6. Step 6: Final answer
    x = 8,467.43

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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.