Home / 8,784.34-13,178.67-3,519.70

Finding the Fourth Proportional to 8,784.34, 13,178.67 and 3,519.70

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Solution

The fourth proportional to 8,784.34, 13,178.67 and 3,519.70 is: 5,280.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.34 : 13,178.67 = 3,519.70 : x
  2. Step 2: Convert to fraction form
    8,784.34/13,178.67 = 3,519.70/x
  3. Step 3: Cross multiply
    8,784.34x = 13,178.67 × 3,519.70
  4. Step 4: Simplify right side
    8,784.34x = 46,384,964.80
  5. Step 5: Solve for x
    x = 46,384,964.80/8,784.34
  6. Step 6: Final answer
    x = 5,280.42

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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.