Home / 15,346.88-21,179.46-8,634.62

Finding the Fourth Proportional to 15,346.88, 21,179.46 and 8,634.62

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Solution

The fourth proportional to 15,346.88, 21,179.46 and 8,634.62 is: 11,916.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346.88 : 21,179.46 = 8,634.62 : x
  2. Step 2: Convert to fraction form
    15,346.88/21,179.46 = 8,634.62/x
  3. Step 3: Cross multiply
    15,346.88x = 21,179.46 × 8,634.62
  4. Step 4: Simplify right side
    15,346.88x = 182,876,588.91
  5. Step 5: Solve for x
    x = 182,876,588.91/15,346.88
  6. Step 6: Final answer
    x = 11,916.21

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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.