Home / 10,579.25-15,865.67-3,181.74

Finding the Fourth Proportional to 10,579.25, 15,865.67 and 3,181.74

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Solution

The fourth proportional to 10,579.25, 15,865.67 and 3,181.74 is: 4,771.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.25 : 15,865.67 = 3,181.74 : x
  2. Step 2: Convert to fraction form
    10,579.25/15,865.67 = 3,181.74/x
  3. Step 3: Cross multiply
    10,579.25x = 15,865.67 × 3,181.74
  4. Step 4: Simplify right side
    10,579.25x = 50,480,444.82
  5. Step 5: Solve for x
    x = 50,480,444.82/10,579.25
  6. Step 6: Final answer
    x = 4,771.65

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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.