Home / 13,663.80-20,487.96-5,334.30

Finding the Fourth Proportional to 13,663.80, 20,487.96 and 5,334.30

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Solution

The fourth proportional to 13,663.80, 20,487.96 and 5,334.30 is: 7,998.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.80 : 20,487.96 = 5,334.30 : x
  2. Step 2: Convert to fraction form
    13,663.80/20,487.96 = 5,334.30/x
  3. Step 3: Cross multiply
    13,663.80x = 20,487.96 × 5,334.30
  4. Step 4: Simplify right side
    13,663.80x = 109,288,925.03
  5. Step 5: Solve for x
    x = 109,288,925.03/13,663.80
  6. Step 6: Final answer
    x = 7,998.43

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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.