Home / 17,998.11-26,988.27-5,515.13

Finding the Fourth Proportional to 17,998.11, 26,988.27 and 5,515.13

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Solution

The fourth proportional to 17,998.11, 26,988.27 and 5,515.13 is: 8,269.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.11 : 26,988.27 = 5,515.13 : x
  2. Step 2: Convert to fraction form
    17,998.11/26,988.27 = 5,515.13/x
  3. Step 3: Cross multiply
    17,998.11x = 26,988.27 × 5,515.13
  4. Step 4: Simplify right side
    17,998.11x = 148,843,817.53
  5. Step 5: Solve for x
    x = 148,843,817.53/17,998.11
  6. Step 6: Final answer
    x = 8,269.97

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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.