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Finding the Fourth Proportional to 11,799.60, 17,699.40 and 7,436.40

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Solution

The fourth proportional to 11,799.60, 17,699.40 and 7,436.40 is: 11,154.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,799.60 : 17,699.40 = 7,436.40 : x
  2. Step 2: Convert to fraction form
    11,799.60/17,699.40 = 7,436.40/x
  3. Step 3: Cross multiply
    11,799.60x = 17,699.40 × 7,436.40
  4. Step 4: Simplify right side
    11,799.60x = 131,619,818.16
  5. Step 5: Solve for x
    x = 131,619,818.16/11,799.60
  6. Step 6: Final answer
    x = 11,154.60

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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.