Home / 13,261.73-18,301.28-7,211.97

Finding the Fourth Proportional to 13,261.73, 18,301.28 and 7,211.97

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Solution

The fourth proportional to 13,261.73, 18,301.28 and 7,211.97 is: 9,952.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.73 : 18,301.28 = 7,211.97 : x
  2. Step 2: Convert to fraction form
    13,261.73/18,301.28 = 7,211.97/x
  3. Step 3: Cross multiply
    13,261.73x = 18,301.28 × 7,211.97
  4. Step 4: Simplify right side
    13,261.73x = 131,988,246.26
  5. Step 5: Solve for x
    x = 131,988,246.26/13,261.73
  6. Step 6: Final answer
    x = 9,952.57

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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.