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Finding the Fourth Proportional to 36,813.57, 55,220.36 and 9,111.57

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Solution

The fourth proportional to 36,813.57, 55,220.36 and 9,111.57 is: 13,667.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,813.57 : 55,220.36 = 9,111.57 : x
  2. Step 2: Convert to fraction form
    36,813.57/55,220.36 = 9,111.57/x
  3. Step 3: Cross multiply
    36,813.57x = 55,220.36 × 9,111.57
  4. Step 4: Simplify right side
    36,813.57x = 503,144,130.01
  5. Step 5: Solve for x
    x = 503,144,130.01/36,813.57
  6. Step 6: Final answer
    x = 13,667.36

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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.