Home / 13,769.68-20,654.98-8,445.24

Finding the Fourth Proportional to 13,769.68, 20,654.98 and 8,445.24

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Solution

The fourth proportional to 13,769.68, 20,654.98 and 8,445.24 is: 12,668.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.68 : 20,654.98 = 8,445.24 : x
  2. Step 2: Convert to fraction form
    13,769.68/20,654.98 = 8,445.24/x
  3. Step 3: Cross multiply
    13,769.68x = 20,654.98 × 8,445.24
  4. Step 4: Simplify right side
    13,769.68x = 174,436,263.30
  5. Step 5: Solve for x
    x = 174,436,263.30/13,769.68
  6. Step 6: Final answer
    x = 12,668.14

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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.