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Finding the Fourth Proportional to 9,110.90, 13,666.26 and 2,954.90

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Solution

The fourth proportional to 9,110.90, 13,666.26 and 2,954.90 is: 4,432.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,110.90 : 13,666.26 = 2,954.90 : x
  2. Step 2: Convert to fraction form
    9,110.90/13,666.26 = 2,954.90/x
  3. Step 3: Cross multiply
    9,110.90x = 13,666.26 × 2,954.90
  4. Step 4: Simplify right side
    9,110.90x = 40,382,431.67
  5. Step 5: Solve for x
    x = 40,382,431.67/9,110.90
  6. Step 6: Final answer
    x = 4,432.32

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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.