Home / 13,229.99-18,258.03-7,261.59

Finding the Fourth Proportional to 13,229.99, 18,258.03 and 7,261.59

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Solution

The fourth proportional to 13,229.99, 18,258.03 and 7,261.59 is: 10,021.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.99 : 18,258.03 = 7,261.59 : x
  2. Step 2: Convert to fraction form
    13,229.99/18,258.03 = 7,261.59/x
  3. Step 3: Cross multiply
    13,229.99x = 18,258.03 × 7,261.59
  4. Step 4: Simplify right side
    13,229.99x = 132,582,291.76
  5. Step 5: Solve for x
    x = 132,582,291.76/13,229.99
  6. Step 6: Final answer
    x = 10,021.35

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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.