Home / 13,359.73-18,436.20-7,391.26

Finding the Fourth Proportional to 13,359.73, 18,436.20 and 7,391.26

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Solution

The fourth proportional to 13,359.73, 18,436.20 and 7,391.26 is: 10,199.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.73 : 18,436.20 = 7,391.26 : x
  2. Step 2: Convert to fraction form
    13,359.73/18,436.20 = 7,391.26/x
  3. Step 3: Cross multiply
    13,359.73x = 18,436.20 × 7,391.26
  4. Step 4: Simplify right side
    13,359.73x = 136,266,747.61
  5. Step 5: Solve for x
    x = 136,266,747.61/13,359.73
  6. Step 6: Final answer
    x = 10,199.81

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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.