Home / 15,697.26-21,664.26-8,983.98

Finding the Fourth Proportional to 15,697.26, 21,664.26 and 8,983.98

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Solution

The fourth proportional to 15,697.26, 21,664.26 and 8,983.98 is: 12,399.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,697.26 : 21,664.26 = 8,983.98 : x
  2. Step 2: Convert to fraction form
    15,697.26/21,664.26 = 8,983.98/x
  3. Step 3: Cross multiply
    15,697.26x = 21,664.26 × 8,983.98
  4. Step 4: Simplify right side
    15,697.26x = 194,631,278.55
  5. Step 5: Solve for x
    x = 194,631,278.55/15,697.26
  6. Step 6: Final answer
    x = 12,399.06

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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.