Home / 13,663.72-20,500.58-5,768.20

Finding the Fourth Proportional to 13,663.72, 20,500.58 and 5,768.20

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Solution

The fourth proportional to 13,663.72, 20,500.58 and 5,768.20 is: 8,654.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.72 : 20,500.58 = 5,768.20 : x
  2. Step 2: Convert to fraction form
    13,663.72/20,500.58 = 5,768.20/x
  3. Step 3: Cross multiply
    13,663.72x = 20,500.58 × 5,768.20
  4. Step 4: Simplify right side
    13,663.72x = 118,251,445.56
  5. Step 5: Solve for x
    x = 118,251,445.56/13,663.72
  6. Step 6: Final answer
    x = 8,654.41

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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.