Home / 8,518.13-12,782.06-3,322.79

Finding the Fourth Proportional to 8,518.13, 12,782.06 and 3,322.79

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Solution

The fourth proportional to 8,518.13, 12,782.06 and 3,322.79 is: 4,986.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.13 : 12,782.06 = 3,322.79 : x
  2. Step 2: Convert to fraction form
    8,518.13/12,782.06 = 3,322.79/x
  3. Step 3: Cross multiply
    8,518.13x = 12,782.06 × 3,322.79
  4. Step 4: Simplify right side
    8,518.13x = 42,472,084.53
  5. Step 5: Solve for x
    x = 42,472,084.53/8,518.13
  6. Step 6: Final answer
    x = 4,986.08

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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.