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Finding the Fourth Proportional to 13,350.60, 20,001.30 and 7,806.60

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Solution

The fourth proportional to 13,350.60, 20,001.30 and 7,806.60 is: 11,695.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.60 : 20,001.30 = 7,806.60 : x
  2. Step 2: Convert to fraction form
    13,350.60/20,001.30 = 7,806.60/x
  3. Step 3: Cross multiply
    13,350.60x = 20,001.30 × 7,806.60
  4. Step 4: Simplify right side
    13,350.60x = 156,142,148.58
  5. Step 5: Solve for x
    x = 156,142,148.58/13,350.60
  6. Step 6: Final answer
    x = 11,695.52

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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.