Home / 13,020.40-17,967.92-7,052.04

Finding the Fourth Proportional to 13,020.40, 17,967.92 and 7,052.04

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Solution

The fourth proportional to 13,020.40, 17,967.92 and 7,052.04 is: 9,731.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.40 : 17,967.92 = 7,052.04 : x
  2. Step 2: Convert to fraction form
    13,020.40/17,967.92 = 7,052.04/x
  3. Step 3: Cross multiply
    13,020.40x = 17,967.92 × 7,052.04
  4. Step 4: Simplify right side
    13,020.40x = 126,710,490.56
  5. Step 5: Solve for x
    x = 126,710,490.56/13,020.40
  6. Step 6: Final answer
    x = 9,731.69

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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.