Home / 14,679.44-20,258.24-8,391.81

Finding the Fourth Proportional to 14,679.44, 20,258.24 and 8,391.81

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Solution

The fourth proportional to 14,679.44, 20,258.24 and 8,391.81 is: 11,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679.44 : 20,258.24 = 8,391.81 : x
  2. Step 2: Convert to fraction form
    14,679.44/20,258.24 = 8,391.81/x
  3. Step 3: Cross multiply
    14,679.44x = 20,258.24 × 8,391.81
  4. Step 4: Simplify right side
    14,679.44x = 170,003,301.01
  5. Step 5: Solve for x
    x = 170,003,301.01/14,679.44
  6. Step 6: Final answer
    x = 11,581.05

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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.