Home / 13,479.48-18,604.74-8,755.56

Finding the Fourth Proportional to 13,479.48, 18,604.74 and 8,755.56

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Solution

The fourth proportional to 13,479.48, 18,604.74 and 8,755.56 is: 12,084.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.48 : 18,604.74 = 8,755.56 : x
  2. Step 2: Convert to fraction form
    13,479.48/18,604.74 = 8,755.56/x
  3. Step 3: Cross multiply
    13,479.48x = 18,604.74 × 8,755.56
  4. Step 4: Simplify right side
    13,479.48x = 162,894,917.35
  5. Step 5: Solve for x
    x = 162,894,917.35/13,479.48
  6. Step 6: Final answer
    x = 12,084.66

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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.