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Finding the Fourth Proportional to 13,029.31, 17,980.50 and 7,060.96

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Solution

The fourth proportional to 13,029.31, 17,980.50 and 7,060.96 is: 9,744.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,029.31 : 17,980.50 = 7,060.96 : x
  2. Step 2: Convert to fraction form
    13,029.31/17,980.50 = 7,060.96/x
  3. Step 3: Cross multiply
    13,029.31x = 17,980.50 × 7,060.96
  4. Step 4: Simplify right side
    13,029.31x = 126,959,591.28
  5. Step 5: Solve for x
    x = 126,959,591.28/13,029.31
  6. Step 6: Final answer
    x = 9,744.15

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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.