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Finding the Fourth Proportional to 14,476.64, 21,718.14 and 8,239.58

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Solution

The fourth proportional to 14,476.64, 21,718.14 and 8,239.58 is: 12,361.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,476.64 : 21,718.14 = 8,239.58 : x
  2. Step 2: Convert to fraction form
    14,476.64/21,718.14 = 8,239.58/x
  3. Step 3: Cross multiply
    14,476.64x = 21,718.14 × 8,239.58
  4. Step 4: Simplify right side
    14,476.64x = 178,948,406.28
  5. Step 5: Solve for x
    x = 178,948,406.28/14,476.64
  6. Step 6: Final answer
    x = 12,361.19

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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.