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Finding the Fourth Proportional to 11,019.80, 16,508.10 and 6,624.20

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Solution

The fourth proportional to 11,019.80, 16,508.10 and 6,624.20 is: 9,923.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,019.80 : 16,508.10 = 6,624.20 : x
  2. Step 2: Convert to fraction form
    11,019.80/16,508.10 = 6,624.20/x
  3. Step 3: Cross multiply
    11,019.80x = 16,508.10 × 6,624.20
  4. Step 4: Simplify right side
    11,019.80x = 109,352,956.02
  5. Step 5: Solve for x
    x = 109,352,956.02/11,019.80
  6. Step 6: Final answer
    x = 9,923.32

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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.