Home / 15,910.44-21,957.03-10,885.20

Finding the Fourth Proportional to 15,910.44, 21,957.03 and 10,885.20

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Solution

The fourth proportional to 15,910.44, 21,957.03 and 10,885.20 is: 15,022.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.44 : 21,957.03 = 10,885.20 : x
  2. Step 2: Convert to fraction form
    15,910.44/21,957.03 = 10,885.20/x
  3. Step 3: Cross multiply
    15,910.44x = 21,957.03 × 10,885.20
  4. Step 4: Simplify right side
    15,910.44x = 239,006,662.96
  5. Step 5: Solve for x
    x = 239,006,662.96/15,910.44
  6. Step 6: Final answer
    x = 15,022.00

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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.