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Finding the Fourth Proportional to 11,208.70, 16,813.05 and 9,404.43

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Solution

The fourth proportional to 11,208.70, 16,813.05 and 9,404.43 is: 14,106.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.70 : 16,813.05 = 9,404.43 : x
  2. Step 2: Convert to fraction form
    11,208.70/16,813.05 = 9,404.43/x
  3. Step 3: Cross multiply
    11,208.70x = 16,813.05 × 9,404.43
  4. Step 4: Simplify right side
    11,208.70x = 158,117,151.81
  5. Step 5: Solve for x
    x = 158,117,151.81/11,208.70
  6. Step 6: Final answer
    x = 14,106.65

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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.