Home / 15,932.15-21,986.30-8,858.15

Finding the Fourth Proportional to 15,932.15, 21,986.30 and 8,858.15

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Solution

The fourth proportional to 15,932.15, 21,986.30 and 8,858.15 is: 12,224.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,932.15 : 21,986.30 = 8,858.15 : x
  2. Step 2: Convert to fraction form
    15,932.15/21,986.30 = 8,858.15/x
  3. Step 3: Cross multiply
    15,932.15x = 21,986.30 × 8,858.15
  4. Step 4: Simplify right side
    15,932.15x = 194,757,899.05
  5. Step 5: Solve for x
    x = 194,757,899.05/15,932.15
  6. Step 6: Final answer
    x = 12,224.21

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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.