Home / 15,911.33-21,960.02-11,449.85

Finding the Fourth Proportional to 15,911.33, 21,960.02 and 11,449.85

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Solution

The fourth proportional to 15,911.33, 21,960.02 and 11,449.85 is: 15,802.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,911.33 : 21,960.02 = 11,449.85 : x
  2. Step 2: Convert to fraction form
    15,911.33/21,960.02 = 11,449.85/x
  3. Step 3: Cross multiply
    15,911.33x = 21,960.02 × 11,449.85
  4. Step 4: Simplify right side
    15,911.33x = 251,438,935.00
  5. Step 5: Solve for x
    x = 251,438,935.00/15,911.33
  6. Step 6: Final answer
    x = 15,802.51

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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.