Home / 10,912.48-15,060.72-6,198.88

Finding the Fourth Proportional to 10,912.48, 15,060.72 and 6,198.88

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Solution

The fourth proportional to 10,912.48, 15,060.72 and 6,198.88 is: 8,555.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.48 : 15,060.72 = 6,198.88 : x
  2. Step 2: Convert to fraction form
    10,912.48/15,060.72 = 6,198.88/x
  3. Step 3: Cross multiply
    10,912.48x = 15,060.72 × 6,198.88
  4. Step 4: Simplify right side
    10,912.48x = 93,359,595.99
  5. Step 5: Solve for x
    x = 93,359,595.99/10,912.48
  6. Step 6: Final answer
    x = 8,555.31

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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.