Home / 11,406.08-15,744.84-6,930.56

Finding the Fourth Proportional to 11,406.08, 15,744.84 and 6,930.56

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Solution

The fourth proportional to 11,406.08, 15,744.84 and 6,930.56 is: 9,566.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.08 : 15,744.84 = 6,930.56 : x
  2. Step 2: Convert to fraction form
    11,406.08/15,744.84 = 6,930.56/x
  3. Step 3: Cross multiply
    11,406.08x = 15,744.84 × 6,930.56
  4. Step 4: Simplify right side
    11,406.08x = 109,120,558.31
  5. Step 5: Solve for x
    x = 109,120,558.31/11,406.08
  6. Step 6: Final answer
    x = 9,566.88

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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.