Home / 11,988.90-17,894.57-11,250.18

Finding the Fourth Proportional to 11,988.90, 17,894.57 and 11,250.18

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Solution

The fourth proportional to 11,988.90, 17,894.57 and 11,250.18 is: 16,791.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.90 : 17,894.57 = 11,250.18 : x
  2. Step 2: Convert to fraction form
    11,988.90/17,894.57 = 11,250.18/x
  3. Step 3: Cross multiply
    11,988.90x = 17,894.57 × 11,250.18
  4. Step 4: Simplify right side
    11,988.90x = 201,317,133.52
  5. Step 5: Solve for x
    x = 201,317,133.52/11,988.90
  6. Step 6: Final answer
    x = 16,791.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.