Home / 11,515.65-17,259.49-5,266.90

Finding the Fourth Proportional to 11,515.65, 17,259.49 and 5,266.90

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Solution

The fourth proportional to 11,515.65, 17,259.49 and 5,266.90 is: 7,893.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.65 : 17,259.49 = 5,266.90 : x
  2. Step 2: Convert to fraction form
    11,515.65/17,259.49 = 5,266.90/x
  3. Step 3: Cross multiply
    11,515.65x = 17,259.49 × 5,266.90
  4. Step 4: Simplify right side
    11,515.65x = 90,904,007.88
  5. Step 5: Solve for x
    x = 90,904,007.88/11,515.65
  6. Step 6: Final answer
    x = 7,893.95

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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.