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Finding the Fourth Proportional to 13,774.66, 19,007.39 and 8,108.13

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Solution

The fourth proportional to 13,774.66, 19,007.39 and 8,108.13 is: 11,188.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.66 : 19,007.39 = 8,108.13 : x
  2. Step 2: Convert to fraction form
    13,774.66/19,007.39 = 8,108.13/x
  3. Step 3: Cross multiply
    13,774.66x = 19,007.39 × 8,108.13
  4. Step 4: Simplify right side
    13,774.66x = 154,114,480.63
  5. Step 5: Solve for x
    x = 154,114,480.63/13,774.66
  6. Step 6: Final answer
    x = 11,188.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.