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Finding the Fourth Proportional to 11,309.99, 16,963.10 and 3,518.20

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Solution

The fourth proportional to 11,309.99, 16,963.10 and 3,518.20 is: 5,276.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,309.99 : 16,963.10 = 3,518.20 : x
  2. Step 2: Convert to fraction form
    11,309.99/16,963.10 = 3,518.20/x
  3. Step 3: Cross multiply
    11,309.99x = 16,963.10 × 3,518.20
  4. Step 4: Simplify right side
    11,309.99x = 59,679,476.01
  5. Step 5: Solve for x
    x = 59,679,476.01/11,309.99
  6. Step 6: Final answer
    x = 5,276.70

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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.