Home / 15,954.48-22,016.87-9,989.44

Finding the Fourth Proportional to 15,954.48, 22,016.87 and 9,989.44

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Solution

The fourth proportional to 15,954.48, 22,016.87 and 9,989.44 is: 13,785.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,954.48 : 22,016.87 = 9,989.44 : x
  2. Step 2: Convert to fraction form
    15,954.48/22,016.87 = 9,989.44/x
  3. Step 3: Cross multiply
    15,954.48x = 22,016.87 × 9,989.44
  4. Step 4: Simplify right side
    15,954.48x = 219,936,134.32
  5. Step 5: Solve for x
    x = 219,936,134.32/15,954.48
  6. Step 6: Final answer
    x = 13,785.23

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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.