Home / 6,867.16-9,472.78-4,213.60

Finding the Fourth Proportional to 6,867.16, 9,472.78 and 4,213.60

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Solution

The fourth proportional to 6,867.16, 9,472.78 and 4,213.60 is: 5,812.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,867.16 : 9,472.78 = 4,213.60 : x
  2. Step 2: Convert to fraction form
    6,867.16/9,472.78 = 4,213.60/x
  3. Step 3: Cross multiply
    6,867.16x = 9,472.78 × 4,213.60
  4. Step 4: Simplify right side
    6,867.16x = 39,914,505.81
  5. Step 5: Solve for x
    x = 39,914,505.81/6,867.16
  6. Step 6: Final answer
    x = 5,812.37

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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.