Home / 13,997.02-20,988.96-5,229.58

Finding the Fourth Proportional to 13,997.02, 20,988.96 and 5,229.58

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Solution

The fourth proportional to 13,997.02, 20,988.96 and 5,229.58 is: 7,841.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.02 : 20,988.96 = 5,229.58 : x
  2. Step 2: Convert to fraction form
    13,997.02/20,988.96 = 5,229.58/x
  3. Step 3: Cross multiply
    13,997.02x = 20,988.96 × 5,229.58
  4. Step 4: Simplify right side
    13,997.02x = 109,763,445.44
  5. Step 5: Solve for x
    x = 109,763,445.44/13,997.02
  6. Step 6: Final answer
    x = 7,841.92

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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.