Home / 11,948.83-16,489.24-6,643.53

Finding the Fourth Proportional to 11,948.83, 16,489.24 and 6,643.53

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Solution

The fourth proportional to 11,948.83, 16,489.24 and 6,643.53 is: 9,167.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.83 : 16,489.24 = 6,643.53 : x
  2. Step 2: Convert to fraction form
    11,948.83/16,489.24 = 6,643.53/x
  3. Step 3: Cross multiply
    11,948.83x = 16,489.24 × 6,643.53
  4. Step 4: Simplify right side
    11,948.83x = 109,546,760.62
  5. Step 5: Solve for x
    x = 109,546,760.62/11,948.83
  6. Step 6: Final answer
    x = 9,167.99

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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.