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Finding the Fourth Proportional to 11,387.80, 17,080.26 and 3,597.40

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Solution

The fourth proportional to 11,387.80, 17,080.26 and 3,597.40 is: 5,395.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.80 : 17,080.26 = 3,597.40 : x
  2. Step 2: Convert to fraction form
    11,387.80/17,080.26 = 3,597.40/x
  3. Step 3: Cross multiply
    11,387.80x = 17,080.26 × 3,597.40
  4. Step 4: Simplify right side
    11,387.80x = 61,444,527.32
  5. Step 5: Solve for x
    x = 61,444,527.32/11,387.80
  6. Step 6: Final answer
    x = 5,395.65

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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.