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Finding the Fourth Proportional to 11,015.80, 16,512.90 and 9,849.40

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Solution

The fourth proportional to 11,015.80, 16,512.90 and 9,849.40 is: 14,764.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.80 : 16,512.90 = 9,849.40 : x
  2. Step 2: Convert to fraction form
    11,015.80/16,512.90 = 9,849.40/x
  3. Step 3: Cross multiply
    11,015.80x = 16,512.90 × 9,849.40
  4. Step 4: Simplify right side
    11,015.80x = 162,642,157.26
  5. Step 5: Solve for x
    x = 162,642,157.26/11,015.80
  6. Step 6: Final answer
    x = 14,764.44

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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.