Home / 15,986.48-22,060.52-8,912.76

Finding the Fourth Proportional to 15,986.48, 22,060.52 and 8,912.76

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Solution

The fourth proportional to 15,986.48, 22,060.52 and 8,912.76 is: 12,299.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.48 : 22,060.52 = 8,912.76 : x
  2. Step 2: Convert to fraction form
    15,986.48/22,060.52 = 8,912.76/x
  3. Step 3: Cross multiply
    15,986.48x = 22,060.52 × 8,912.76
  4. Step 4: Simplify right side
    15,986.48x = 196,620,120.24
  5. Step 5: Solve for x
    x = 196,620,120.24/15,986.48
  6. Step 6: Final answer
    x = 12,299.15

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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.