Home / 10,997.72-15,174.24-6,217.76

Finding the Fourth Proportional to 10,997.72, 15,174.24 and 6,217.76

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Solution

The fourth proportional to 10,997.72, 15,174.24 and 6,217.76 is: 8,579.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,997.72 : 15,174.24 = 6,217.76 : x
  2. Step 2: Convert to fraction form
    10,997.72/15,174.24 = 6,217.76/x
  3. Step 3: Cross multiply
    10,997.72x = 15,174.24 × 6,217.76
  4. Step 4: Simplify right side
    10,997.72x = 94,349,782.50
  5. Step 5: Solve for x
    x = 94,349,782.50/10,997.72
  6. Step 6: Final answer
    x = 8,579.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.