Home / 15,310.52-21,128.39-8,596.28

Finding the Fourth Proportional to 15,310.52, 21,128.39 and 8,596.28

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Solution

The fourth proportional to 15,310.52, 21,128.39 and 8,596.28 is: 11,862.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.52 : 21,128.39 = 8,596.28 : x
  2. Step 2: Convert to fraction form
    15,310.52/21,128.39 = 8,596.28/x
  3. Step 3: Cross multiply
    15,310.52x = 21,128.39 × 8,596.28
  4. Step 4: Simplify right side
    15,310.52x = 181,625,527.97
  5. Step 5: Solve for x
    x = 181,625,527.97/15,310.52
  6. Step 6: Final answer
    x = 11,862.79

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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.