Home / 15,995.56-22,073.40-8,921.82

Finding the Fourth Proportional to 15,995.56, 22,073.40 and 8,921.82

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Solution

The fourth proportional to 15,995.56, 22,073.40 and 8,921.82 is: 12,311.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,995.56 : 22,073.40 = 8,921.82 : x
  2. Step 2: Convert to fraction form
    15,995.56/22,073.40 = 8,921.82/x
  3. Step 3: Cross multiply
    15,995.56x = 22,073.40 × 8,921.82
  4. Step 4: Simplify right side
    15,995.56x = 196,934,901.59
  5. Step 5: Solve for x
    x = 196,934,901.59/15,995.56
  6. Step 6: Final answer
    x = 12,311.85

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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.