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Finding the Fourth Proportional to 14,435.68, 19,918.56 and 8,146.84

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Solution

The fourth proportional to 14,435.68, 19,918.56 and 8,146.84 is: 11,241.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,435.68 : 19,918.56 = 8,146.84 : x
  2. Step 2: Convert to fraction form
    14,435.68/19,918.56 = 8,146.84/x
  3. Step 3: Cross multiply
    14,435.68x = 19,918.56 × 8,146.84
  4. Step 4: Simplify right side
    14,435.68x = 162,273,321.35
  5. Step 5: Solve for x
    x = 162,273,321.35/14,435.68
  6. Step 6: Final answer
    x = 11,241.13

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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.