Home / 13,516.22-20,296.80-8,354.90

Finding the Fourth Proportional to 13,516.22, 20,296.80 and 8,354.90

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Solution

The fourth proportional to 13,516.22, 20,296.80 and 8,354.90 is: 12,546.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.22 : 20,296.80 = 8,354.90 : x
  2. Step 2: Convert to fraction form
    13,516.22/20,296.80 = 8,354.90/x
  3. Step 3: Cross multiply
    13,516.22x = 20,296.80 × 8,354.90
  4. Step 4: Simplify right side
    13,516.22x = 169,577,734.32
  5. Step 5: Solve for x
    x = 169,577,734.32/13,516.22
  6. Step 6: Final answer
    x = 12,546.24

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1.5x scale

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.