Home / 15,986.22-22,061.26-8,911.86

Finding the Fourth Proportional to 15,986.22, 22,061.26 and 8,911.86

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Solution

The fourth proportional to 15,986.22, 22,061.26 and 8,911.86 is: 12,298.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.22 : 22,061.26 = 8,911.86 : x
  2. Step 2: Convert to fraction form
    15,986.22/22,061.26 = 8,911.86/x
  3. Step 3: Cross multiply
    15,986.22x = 22,061.26 × 8,911.86
  4. Step 4: Simplify right side
    15,986.22x = 196,606,860.54
  5. Step 5: Solve for x
    x = 196,606,860.54/15,986.22
  6. Step 6: Final answer
    x = 12,298.52

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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.