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Finding the Fourth Proportional to 14,283.28, 19,710.90 and 8,694.28

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Solution

The fourth proportional to 14,283.28, 19,710.90 and 8,694.28 is: 11,998.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,283.28 : 19,710.90 = 8,694.28 : x
  2. Step 2: Convert to fraction form
    14,283.28/19,710.90 = 8,694.28/x
  3. Step 3: Cross multiply
    14,283.28x = 19,710.90 × 8,694.28
  4. Step 4: Simplify right side
    14,283.28x = 171,372,083.65
  5. Step 5: Solve for x
    x = 171,372,083.65/14,283.28
  6. Step 6: Final answer
    x = 11,998.09

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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.