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Finding the Fourth Proportional to 11,527.99, 15,910.14 and 6,493.20

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Solution

The fourth proportional to 11,527.99, 15,910.14 and 6,493.20 is: 8,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,527.99 : 15,910.14 = 6,493.20 : x
  2. Step 2: Convert to fraction form
    11,527.99/15,910.14 = 6,493.20/x
  3. Step 3: Cross multiply
    11,527.99x = 15,910.14 × 6,493.20
  4. Step 4: Simplify right side
    11,527.99x = 103,307,721.05
  5. Step 5: Solve for x
    x = 103,307,721.05/11,527.99
  6. Step 6: Final answer
    x = 8,961.47

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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.