Home / 13,172.73-18,177.92-7,204.34

Finding the Fourth Proportional to 13,172.73, 18,177.92 and 7,204.34

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Solution

The fourth proportional to 13,172.73, 18,177.92 and 7,204.34 is: 9,941.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.73 : 18,177.92 = 7,204.34 : x
  2. Step 2: Convert to fraction form
    13,172.73/18,177.92 = 7,204.34/x
  3. Step 3: Cross multiply
    13,172.73x = 18,177.92 × 7,204.34
  4. Step 4: Simplify right side
    13,172.73x = 130,959,952.61
  5. Step 5: Solve for x
    x = 130,959,952.61/13,172.73
  6. Step 6: Final answer
    x = 9,941.75

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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.