Home / 13,424.60-20,129.02-4,061.80

Finding the Fourth Proportional to 13,424.60, 20,129.02 and 4,061.80

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Solution

The fourth proportional to 13,424.60, 20,129.02 and 4,061.80 is: 6,090.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.60 : 20,129.02 = 4,061.80 : x
  2. Step 2: Convert to fraction form
    13,424.60/20,129.02 = 4,061.80/x
  3. Step 3: Cross multiply
    13,424.60x = 20,129.02 × 4,061.80
  4. Step 4: Simplify right side
    13,424.60x = 81,760,053.44
  5. Step 5: Solve for x
    x = 81,760,053.44/13,424.60
  6. Step 6: Final answer
    x = 6,090.32

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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.