Home / 15,943.23-21,997.58-8,868.29

Finding the Fourth Proportional to 15,943.23, 21,997.58 and 8,868.29

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Solution

The fourth proportional to 15,943.23, 21,997.58 and 8,868.29 is: 12,235.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943.23 : 21,997.58 = 8,868.29 : x
  2. Step 2: Convert to fraction form
    15,943.23/21,997.58 = 8,868.29/x
  3. Step 3: Cross multiply
    15,943.23x = 21,997.58 × 8,868.29
  4. Step 4: Simplify right side
    15,943.23x = 195,080,764.41
  5. Step 5: Solve for x
    x = 195,080,764.41/15,943.23
  6. Step 6: Final answer
    x = 12,235.96

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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.