Home / 13,258.89-18,297.09-7,290.20

Finding the Fourth Proportional to 13,258.89, 18,297.09 and 7,290.20

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Solution

The fourth proportional to 13,258.89, 18,297.09 and 7,290.20 is: 10,060.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.89 : 18,297.09 = 7,290.20 : x
  2. Step 2: Convert to fraction form
    13,258.89/18,297.09 = 7,290.20/x
  3. Step 3: Cross multiply
    13,258.89x = 18,297.09 × 7,290.20
  4. Step 4: Simplify right side
    13,258.89x = 133,389,491.26
  5. Step 5: Solve for x
    x = 133,389,491.26/13,258.89
  6. Step 6: Final answer
    x = 10,060.38

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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.