Home / 11,605.22-15,997.91-7,125.52

Finding the Fourth Proportional to 11,605.22, 15,997.91 and 7,125.52

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Solution

The fourth proportional to 11,605.22, 15,997.91 and 7,125.52 is: 9,822.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,605.22 : 15,997.91 = 7,125.52 : x
  2. Step 2: Convert to fraction form
    11,605.22/15,997.91 = 7,125.52/x
  3. Step 3: Cross multiply
    11,605.22x = 15,997.91 × 7,125.52
  4. Step 4: Simplify right side
    11,605.22x = 113,993,382.04
  5. Step 5: Solve for x
    x = 113,993,382.04/11,605.22
  6. Step 6: Final answer
    x = 9,822.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.