Home / 13,365.02-20,040.78-4,477.28

Finding the Fourth Proportional to 13,365.02, 20,040.78 and 4,477.28

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Solution

The fourth proportional to 13,365.02, 20,040.78 and 4,477.28 is: 6,713.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365.02 : 20,040.78 = 4,477.28 : x
  2. Step 2: Convert to fraction form
    13,365.02/20,040.78 = 4,477.28/x
  3. Step 3: Cross multiply
    13,365.02x = 20,040.78 × 4,477.28
  4. Step 4: Simplify right side
    13,365.02x = 89,728,183.48
  5. Step 5: Solve for x
    x = 89,728,183.48/13,365.02
  6. Step 6: Final answer
    x = 6,713.66

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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.