Home / 13,803.16-20,704.64-8,258.04

Finding the Fourth Proportional to 13,803.16, 20,704.64 and 8,258.04

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Solution

The fourth proportional to 13,803.16, 20,704.64 and 8,258.04 is: 12,387.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.16 : 20,704.64 = 8,258.04 : x
  2. Step 2: Convert to fraction form
    13,803.16/20,704.64 = 8,258.04/x
  3. Step 3: Cross multiply
    13,803.16x = 20,704.64 × 8,258.04
  4. Step 4: Simplify right side
    13,803.16x = 170,979,745.31
  5. Step 5: Solve for x
    x = 170,979,745.31/13,803.16
  6. Step 6: Final answer
    x = 12,387.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.