Home / 13,258.97-18,297.20-7,290.58

Finding the Fourth Proportional to 13,258.97, 18,297.20 and 7,290.58

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Solution

The fourth proportional to 13,258.97, 18,297.20 and 7,290.58 is: 10,060.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.97 : 18,297.20 = 7,290.58 : x
  2. Step 2: Convert to fraction form
    13,258.97/18,297.20 = 7,290.58/x
  3. Step 3: Cross multiply
    13,258.97x = 18,297.20 × 7,290.58
  4. Step 4: Simplify right side
    13,258.97x = 133,397,172.86
  5. Step 5: Solve for x
    x = 133,397,172.86/13,258.97
  6. Step 6: Final answer
    x = 10,060.90

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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.