Home / 13,258.88-18,297.36-7,290.38

Finding the Fourth Proportional to 13,258.88, 18,297.36 and 7,290.38

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Solution

The fourth proportional to 13,258.88, 18,297.36 and 7,290.38 is: 10,060.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.88 : 18,297.36 = 7,290.38 : x
  2. Step 2: Convert to fraction form
    13,258.88/18,297.36 = 7,290.38/x
  3. Step 3: Cross multiply
    13,258.88x = 18,297.36 × 7,290.38
  4. Step 4: Simplify right side
    13,258.88x = 133,394,707.40
  5. Step 5: Solve for x
    x = 133,394,707.40/13,258.88
  6. Step 6: Final answer
    x = 10,060.78

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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.