Home / 15,910.80-21,957.27-8,837.07

Finding the Fourth Proportional to 15,910.80, 21,957.27 and 8,837.07

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Solution

The fourth proportional to 15,910.80, 21,957.27 and 8,837.07 is: 12,195.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.80 : 21,957.27 = 8,837.07 : x
  2. Step 2: Convert to fraction form
    15,910.80/21,957.27 = 8,837.07/x
  3. Step 3: Cross multiply
    15,910.80x = 21,957.27 × 8,837.07
  4. Step 4: Simplify right side
    15,910.80x = 194,037,932.00
  5. Step 5: Solve for x
    x = 194,037,932.00/15,910.80
  6. Step 6: Final answer
    x = 12,195.36

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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.