Home / 8,684.35-13,018.83-4,178.79

Finding the Fourth Proportional to 8,684.35, 13,018.83 and 4,178.79

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Solution

The fourth proportional to 8,684.35, 13,018.83 and 4,178.79 is: 6,264.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.35 : 13,018.83 = 4,178.79 : x
  2. Step 2: Convert to fraction form
    8,684.35/13,018.83 = 4,178.79/x
  3. Step 3: Cross multiply
    8,684.35x = 13,018.83 × 4,178.79
  4. Step 4: Simplify right side
    8,684.35x = 54,402,940.95
  5. Step 5: Solve for x
    x = 54,402,940.95/8,684.35
  6. Step 6: Final answer
    x = 6,264.48

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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.