Home / 14,649.23-20,216.32-8,679.94

Finding the Fourth Proportional to 14,649.23, 20,216.32 and 8,679.94

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Solution

The fourth proportional to 14,649.23, 20,216.32 and 8,679.94 is: 11,978.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.23 : 20,216.32 = 8,679.94 : x
  2. Step 2: Convert to fraction form
    14,649.23/20,216.32 = 8,679.94/x
  3. Step 3: Cross multiply
    14,649.23x = 20,216.32 × 8,679.94
  4. Step 4: Simplify right side
    14,649.23x = 175,476,372.38
  5. Step 5: Solve for x
    x = 175,476,372.38/14,649.23
  6. Step 6: Final answer
    x = 11,978.54

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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.