Home / 8,818.94-12,174.86-6,812.75

Finding the Fourth Proportional to 8,818.94, 12,174.86 and 6,812.75

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Solution

The fourth proportional to 8,818.94, 12,174.86 and 6,812.75 is: 9,405.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.94 : 12,174.86 = 6,812.75 : x
  2. Step 2: Convert to fraction form
    8,818.94/12,174.86 = 6,812.75/x
  3. Step 3: Cross multiply
    8,818.94x = 12,174.86 × 6,812.75
  4. Step 4: Simplify right side
    8,818.94x = 82,944,182.53
  5. Step 5: Solve for x
    x = 82,944,182.53/8,818.94
  6. Step 6: Final answer
    x = 9,405.24

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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.