Home / 8,811.86-13,214.52-6,178.02

Finding the Fourth Proportional to 8,811.86, 13,214.52 and 6,178.02

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Solution

The fourth proportional to 8,811.86, 13,214.52 and 6,178.02 is: 9,264.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.86 : 13,214.52 = 6,178.02 : x
  2. Step 2: Convert to fraction form
    8,811.86/13,214.52 = 6,178.02/x
  3. Step 3: Cross multiply
    8,811.86x = 13,214.52 × 6,178.02
  4. Step 4: Simplify right side
    8,811.86x = 81,639,568.85
  5. Step 5: Solve for x
    x = 81,639,568.85/8,811.86
  6. Step 6: Final answer
    x = 9,264.74

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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.