Home / 11,403.72-15,734.34-6,687.09

Finding the Fourth Proportional to 11,403.72, 15,734.34 and 6,687.09

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Solution

The fourth proportional to 11,403.72, 15,734.34 and 6,687.09 is: 9,226.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,403.72 : 15,734.34 = 6,687.09 : x
  2. Step 2: Convert to fraction form
    11,403.72/15,734.34 = 6,687.09/x
  3. Step 3: Cross multiply
    11,403.72x = 15,734.34 × 6,687.09
  4. Step 4: Simplify right side
    11,403.72x = 105,216,947.67
  5. Step 5: Solve for x
    x = 105,216,947.67/11,403.72
  6. Step 6: Final answer
    x = 9,226.55

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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.