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Finding the Fourth Proportional to 17,987.56, 26,981.34 and 7,598.44

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Solution

The fourth proportional to 17,987.56, 26,981.34 and 7,598.44 is: 11,397.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987.56 : 26,981.34 = 7,598.44 : x
  2. Step 2: Convert to fraction form
    17,987.56/26,981.34 = 7,598.44/x
  3. Step 3: Cross multiply
    17,987.56x = 26,981.34 × 7,598.44
  4. Step 4: Simplify right side
    17,987.56x = 205,016,093.11
  5. Step 5: Solve for x
    x = 205,016,093.11/17,987.56
  6. Step 6: Final answer
    x = 11,397.66

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Similar ratio
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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.