Home / 13,020.42-17,966.97-7,353.66

Finding the Fourth Proportional to 13,020.42, 17,966.97 and 7,353.66

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Solution

The fourth proportional to 13,020.42, 17,966.97 and 7,353.66 is: 10,147.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.42 : 17,966.97 = 7,353.66 : x
  2. Step 2: Convert to fraction form
    13,020.42/17,966.97 = 7,353.66/x
  3. Step 3: Cross multiply
    13,020.42x = 17,966.97 × 7,353.66
  4. Step 4: Simplify right side
    13,020.42x = 132,122,988.61
  5. Step 5: Solve for x
    x = 132,122,988.61/13,020.42
  6. Step 6: Final answer
    x = 10,147.37

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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.