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Finding the Fourth Proportional to 11,602.80, 16,001.55 and 9,363.96

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Solution

The fourth proportional to 11,602.80, 16,001.55 and 9,363.96 is: 12,913.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,602.80 : 16,001.55 = 9,363.96 : x
  2. Step 2: Convert to fraction form
    11,602.80/16,001.55 = 9,363.96/x
  3. Step 3: Cross multiply
    11,602.80x = 16,001.55 × 9,363.96
  4. Step 4: Simplify right side
    11,602.80x = 149,837,874.14
  5. Step 5: Solve for x
    x = 149,837,874.14/11,602.80
  6. Step 6: Final answer
    x = 12,913.94

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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.