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Finding the Fourth Proportional to 11,241.60, 16,881.60 and 7,363.20

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Solution

The fourth proportional to 11,241.60, 16,881.60 and 7,363.20 is: 11,057.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,241.60 : 16,881.60 = 7,363.20 : x
  2. Step 2: Convert to fraction form
    11,241.60/16,881.60 = 7,363.20/x
  3. Step 3: Cross multiply
    11,241.60x = 16,881.60 × 7,363.20
  4. Step 4: Simplify right side
    11,241.60x = 124,302,597.12
  5. Step 5: Solve for x
    x = 124,302,597.12/11,241.60
  6. Step 6: Final answer
    x = 11,057.38

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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.