Home / 13,171.73-18,177.42-7,203.40

Finding the Fourth Proportional to 13,171.73, 18,177.42 and 7,203.40

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Solution

The fourth proportional to 13,171.73, 18,177.42 and 7,203.40 is: 9,940.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.73 : 18,177.42 = 7,203.40 : x
  2. Step 2: Convert to fraction form
    13,171.73/18,177.42 = 7,203.40/x
  3. Step 3: Cross multiply
    13,171.73x = 18,177.42 × 7,203.40
  4. Step 4: Simplify right side
    13,171.73x = 130,939,136.34
  5. Step 5: Solve for x
    x = 130,939,136.34/13,171.73
  6. Step 6: Final answer
    x = 9,940.92

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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.