Home / 8,216.36-11,338.18-4,679.72

Finding the Fourth Proportional to 8,216.36, 11,338.18 and 4,679.72

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Solution

The fourth proportional to 8,216.36, 11,338.18 and 4,679.72 is: 6,457.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216.36 : 11,338.18 = 4,679.72 : x
  2. Step 2: Convert to fraction form
    8,216.36/11,338.18 = 4,679.72/x
  3. Step 3: Cross multiply
    8,216.36x = 11,338.18 × 4,679.72
  4. Step 4: Simplify right side
    8,216.36x = 53,059,507.71
  5. Step 5: Solve for x
    x = 53,059,507.71/8,216.36
  6. Step 6: Final answer
    x = 6,457.79

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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.