Home / 15,957.23-22,021.13-9,992.39

Finding the Fourth Proportional to 15,957.23, 22,021.13 and 9,992.39

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Solution

The fourth proportional to 15,957.23, 22,021.13 and 9,992.39 is: 13,789.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,957.23 : 22,021.13 = 9,992.39 : x
  2. Step 2: Convert to fraction form
    15,957.23/22,021.13 = 9,992.39/x
  3. Step 3: Cross multiply
    15,957.23x = 22,021.13 × 9,992.39
  4. Step 4: Simplify right side
    15,957.23x = 220,043,634.08
  5. Step 5: Solve for x
    x = 220,043,634.08/15,957.23
  6. Step 6: Final answer
    x = 13,789.59

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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.