Home / 13,775.44-20,652.24-5,978.80

Finding the Fourth Proportional to 13,775.44, 20,652.24 and 5,978.80

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Solution

The fourth proportional to 13,775.44, 20,652.24 and 5,978.80 is: 8,963.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.44 : 20,652.24 = 5,978.80 : x
  2. Step 2: Convert to fraction form
    13,775.44/20,652.24 = 5,978.80/x
  3. Step 3: Cross multiply
    13,775.44x = 20,652.24 × 5,978.80
  4. Step 4: Simplify right side
    13,775.44x = 123,475,612.51
  5. Step 5: Solve for x
    x = 123,475,612.51/13,775.44
  6. Step 6: Final answer
    x = 8,963.46

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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.