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Finding the Fourth Proportional to 14,141.66, 19,515.60 and 8,839.60

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Solution

The fourth proportional to 14,141.66, 19,515.60 and 8,839.60 is: 12,198.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,141.66 : 19,515.60 = 8,839.60 : x
  2. Step 2: Convert to fraction form
    14,141.66/19,515.60 = 8,839.60/x
  3. Step 3: Cross multiply
    14,141.66x = 19,515.60 × 8,839.60
  4. Step 4: Simplify right side
    14,141.66x = 172,510,048.97
  5. Step 5: Solve for x
    x = 172,510,048.97/14,141.66
  6. Step 6: Final answer
    x = 12,198.72

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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.