Home / 13,458.12-20,200.20-9,713.76

Finding the Fourth Proportional to 13,458.12, 20,200.20 and 9,713.76

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Solution

The fourth proportional to 13,458.12, 20,200.20 and 9,713.76 is: 14,580.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.12 : 20,200.20 = 9,713.76 : x
  2. Step 2: Convert to fraction form
    13,458.12/20,200.20 = 9,713.76/x
  3. Step 3: Cross multiply
    13,458.12x = 20,200.20 × 9,713.76
  4. Step 4: Simplify right side
    13,458.12x = 196,219,894.75
  5. Step 5: Solve for x
    x = 196,219,894.75/13,458.12
  6. Step 6: Final answer
    x = 14,580.04

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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.