Home / 7,515.06-11,265-3,617.34

Finding the Fourth Proportional to 7,515.06, 11,265 and 3,617.34

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Solution

The fourth proportional to 7,515.06, 11,265 and 3,617.34 is: 5,422.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.06 : 11,265 = 3,617.34 : x
  2. Step 2: Convert to fraction form
    7,515.06/11,265 = 3,617.34/x
  3. Step 3: Cross multiply
    7,515.06x = 11,265 × 3,617.34
  4. Step 4: Simplify right side
    7,515.06x = 40,749,335.10
  5. Step 5: Solve for x
    x = 40,749,335.10/7,515.06
  6. Step 6: Final answer
    x = 5,422.36

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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.