Home / 15,650.28-21,618.09-11,664.47

Finding the Fourth Proportional to 15,650.28, 21,618.09 and 11,664.47

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Solution

The fourth proportional to 15,650.28, 21,618.09 and 11,664.47 is: 16,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,650.28 : 21,618.09 = 11,664.47 : x
  2. Step 2: Convert to fraction form
    15,650.28/21,618.09 = 11,664.47/x
  3. Step 3: Cross multiply
    15,650.28x = 21,618.09 × 11,664.47
  4. Step 4: Simplify right side
    15,650.28x = 252,163,616.31
  5. Step 5: Solve for x
    x = 252,163,616.31/15,650.28
  6. Step 6: Final answer
    x = 16,112.40

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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.