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Finding the Fourth Proportional to 12,959.73, 17,893.04 and 9,970.29

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Solution

The fourth proportional to 12,959.73, 17,893.04 and 9,970.29 is: 13,765.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959.73 : 17,893.04 = 9,970.29 : x
  2. Step 2: Convert to fraction form
    12,959.73/17,893.04 = 9,970.29/x
  3. Step 3: Cross multiply
    12,959.73x = 17,893.04 × 9,970.29
  4. Step 4: Simplify right side
    12,959.73x = 178,398,747.93
  5. Step 5: Solve for x
    x = 178,398,747.93/12,959.73
  6. Step 6: Final answer
    x = 13,765.62

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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.