Home / 11,715.12-17,572.69-3,395.15

Finding the Fourth Proportional to 11,715.12, 17,572.69 and 3,395.15

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Solution

The fourth proportional to 11,715.12, 17,572.69 and 3,395.15 is: 5,092.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.12 : 17,572.69 = 3,395.15 : x
  2. Step 2: Convert to fraction form
    11,715.12/17,572.69 = 3,395.15/x
  3. Step 3: Cross multiply
    11,715.12x = 17,572.69 × 3,395.15
  4. Step 4: Simplify right side
    11,715.12x = 59,661,813.61
  5. Step 5: Solve for x
    x = 59,661,813.61/11,715.12
  6. Step 6: Final answer
    x = 5,092.72

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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.