Home / 11,164.92-15,406.45-6,688.55

Finding the Fourth Proportional to 11,164.92, 15,406.45 and 6,688.55

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Solution

The fourth proportional to 11,164.92, 15,406.45 and 6,688.55 is: 9,229.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.92 : 15,406.45 = 6,688.55 : x
  2. Step 2: Convert to fraction form
    11,164.92/15,406.45 = 6,688.55/x
  3. Step 3: Cross multiply
    11,164.92x = 15,406.45 × 6,688.55
  4. Step 4: Simplify right side
    11,164.92x = 103,046,858.02
  5. Step 5: Solve for x
    x = 103,046,858.02/11,164.92
  6. Step 6: Final answer
    x = 9,229.52

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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.