Home / 13,996.02-20,987.46-5,228.58

Finding the Fourth Proportional to 13,996.02, 20,987.46 and 5,228.58

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Solution

The fourth proportional to 13,996.02, 20,987.46 and 5,228.58 is: 7,840.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,996.02 : 20,987.46 = 5,228.58 : x
  2. Step 2: Convert to fraction form
    13,996.02/20,987.46 = 5,228.58/x
  3. Step 3: Cross multiply
    13,996.02x = 20,987.46 × 5,228.58
  4. Step 4: Simplify right side
    13,996.02x = 109,734,613.61
  5. Step 5: Solve for x
    x = 109,734,613.61/13,996.02
  6. Step 6: Final answer
    x = 7,840.42

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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.