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Finding the Fourth Proportional to 8,368.66, 12,555.27 and 6,804.79

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Solution

The fourth proportional to 8,368.66, 12,555.27 and 6,804.79 is: 10,209.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,368.66 : 12,555.27 = 6,804.79 : x
  2. Step 2: Convert to fraction form
    8,368.66/12,555.27 = 6,804.79/x
  3. Step 3: Cross multiply
    8,368.66x = 12,555.27 × 6,804.79
  4. Step 4: Simplify right side
    8,368.66x = 85,435,975.74
  5. Step 5: Solve for x
    x = 85,435,975.74/8,368.66
  6. Step 6: Final answer
    x = 10,209.04

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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.