Home / 9,177.28-12,664.46-5,400.84

Finding the Fourth Proportional to 9,177.28, 12,664.46 and 5,400.84

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Solution

The fourth proportional to 9,177.28, 12,664.46 and 5,400.84 is: 7,453.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.28 : 12,664.46 = 5,400.84 : x
  2. Step 2: Convert to fraction form
    9,177.28/12,664.46 = 5,400.84/x
  3. Step 3: Cross multiply
    9,177.28x = 12,664.46 × 5,400.84
  4. Step 4: Simplify right side
    9,177.28x = 68,398,722.15
  5. Step 5: Solve for x
    x = 68,398,722.15/9,177.28
  6. Step 6: Final answer
    x = 7,453.05

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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.