Home / 15,650.48-21,618.35-11,664.66

Finding the Fourth Proportional to 15,650.48, 21,618.35 and 11,664.66

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Solution

The fourth proportional to 15,650.48, 21,618.35 and 11,664.66 is: 16,112.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,650.48 : 21,618.35 = 11,664.66 : x
  2. Step 2: Convert to fraction form
    15,650.48/21,618.35 = 11,664.66/x
  3. Step 3: Cross multiply
    15,650.48x = 21,618.35 × 11,664.66
  4. Step 4: Simplify right side
    15,650.48x = 252,170,644.19
  5. Step 5: Solve for x
    x = 252,170,644.19/15,650.48
  6. Step 6: Final answer
    x = 16,112.65

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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.