Home / 13,036.25-17,989.91-7,372.11

Finding the Fourth Proportional to 13,036.25, 17,989.91 and 7,372.11

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Solution

The fourth proportional to 13,036.25, 17,989.91 and 7,372.11 is: 10,173.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.25 : 17,989.91 = 7,372.11 : x
  2. Step 2: Convert to fraction form
    13,036.25/17,989.91 = 7,372.11/x
  3. Step 3: Cross multiply
    13,036.25x = 17,989.91 × 7,372.11
  4. Step 4: Simplify right side
    13,036.25x = 132,623,505.46
  5. Step 5: Solve for x
    x = 132,623,505.46/13,036.25
  6. Step 6: Final answer
    x = 10,173.44

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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.