Home / 11,164.24-15,408.26-6,688.18

Finding the Fourth Proportional to 11,164.24, 15,408.26 and 6,688.18

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Solution

The fourth proportional to 11,164.24, 15,408.26 and 6,688.18 is: 9,230.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.24 : 15,408.26 = 6,688.18 : x
  2. Step 2: Convert to fraction form
    11,164.24/15,408.26 = 6,688.18/x
  3. Step 3: Cross multiply
    11,164.24x = 15,408.26 × 6,688.18
  4. Step 4: Simplify right side
    11,164.24x = 103,053,216.37
  5. Step 5: Solve for x
    x = 103,053,216.37/11,164.24
  6. Step 6: Final answer
    x = 9,230.65

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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.