Home / 11,739.75-17,615.36-5,165.11

Finding the Fourth Proportional to 11,739.75, 17,615.36 and 5,165.11

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Solution

The fourth proportional to 11,739.75, 17,615.36 and 5,165.11 is: 7,750.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,739.75 : 17,615.36 = 5,165.11 : x
  2. Step 2: Convert to fraction form
    11,739.75/17,615.36 = 5,165.11/x
  3. Step 3: Cross multiply
    11,739.75x = 17,615.36 × 5,165.11
  4. Step 4: Simplify right side
    11,739.75x = 90,985,246.26
  5. Step 5: Solve for x
    x = 90,985,246.26/11,739.75
  6. Step 6: Final answer
    x = 7,750.19

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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.