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Finding the Fourth Proportional to 10,454.68, 15,682.11 and 2,663.50

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Solution

The fourth proportional to 10,454.68, 15,682.11 and 2,663.50 is: 3,995.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,454.68 : 15,682.11 = 2,663.50 : x
  2. Step 2: Convert to fraction form
    10,454.68/15,682.11 = 2,663.50/x
  3. Step 3: Cross multiply
    10,454.68x = 15,682.11 × 2,663.50
  4. Step 4: Simplify right side
    10,454.68x = 41,769,299.99
  5. Step 5: Solve for x
    x = 41,769,299.99/10,454.68
  6. Step 6: Final answer
    x = 3,995.27

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1.5x scale

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.