Home / 13,442.36-20,165.70-5,651.60

Finding the Fourth Proportional to 13,442.36, 20,165.70 and 5,651.60

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Solution

The fourth proportional to 13,442.36, 20,165.70 and 5,651.60 is: 8,478.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.36 : 20,165.70 = 5,651.60 : x
  2. Step 2: Convert to fraction form
    13,442.36/20,165.70 = 5,651.60/x
  3. Step 3: Cross multiply
    13,442.36x = 20,165.70 × 5,651.60
  4. Step 4: Simplify right side
    13,442.36x = 113,968,470.12
  5. Step 5: Solve for x
    x = 113,968,470.12/13,442.36
  6. Step 6: Final answer
    x = 8,478.31

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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.