Home / 15,921.54-21,974.13-11,460.06

Finding the Fourth Proportional to 15,921.54, 21,974.13 and 11,460.06

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Solution

The fourth proportional to 15,921.54, 21,974.13 and 11,460.06 is: 15,816.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,921.54 : 21,974.13 = 11,460.06 : x
  2. Step 2: Convert to fraction form
    15,921.54/21,974.13 = 11,460.06/x
  3. Step 3: Cross multiply
    15,921.54x = 21,974.13 × 11,460.06
  4. Step 4: Simplify right side
    15,921.54x = 251,824,848.25
  5. Step 5: Solve for x
    x = 251,824,848.25/15,921.54
  6. Step 6: Final answer
    x = 15,816.61

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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.