Home / 12,217.32-18,322.67-4,318.79

Finding the Fourth Proportional to 12,217.32, 18,322.67 and 4,318.79

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Solution

The fourth proportional to 12,217.32, 18,322.67 and 4,318.79 is: 6,477.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.32 : 18,322.67 = 4,318.79 : x
  2. Step 2: Convert to fraction form
    12,217.32/18,322.67 = 4,318.79/x
  3. Step 3: Cross multiply
    12,217.32x = 18,322.67 × 4,318.79
  4. Step 4: Simplify right side
    12,217.32x = 79,131,650.76
  5. Step 5: Solve for x
    x = 79,131,650.76/12,217.32
  6. Step 6: Final answer
    x = 6,477.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.