Home / 15,901.10-21,943.62-8,731.34

Finding the Fourth Proportional to 15,901.10, 21,943.62 and 8,731.34

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Solution

The fourth proportional to 15,901.10, 21,943.62 and 8,731.34 is: 12,049.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,901.10 : 21,943.62 = 8,731.34 : x
  2. Step 2: Convert to fraction form
    15,901.10/21,943.62 = 8,731.34/x
  3. Step 3: Cross multiply
    15,901.10x = 21,943.62 × 8,731.34
  4. Step 4: Simplify right side
    15,901.10x = 191,597,207.05
  5. Step 5: Solve for x
    x = 191,597,207.05/15,901.10
  6. Step 6: Final answer
    x = 12,049.31

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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.