Home / 8,468.10-11,685.84-4,639.70

Finding the Fourth Proportional to 8,468.10, 11,685.84 and 4,639.70

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Solution

The fourth proportional to 8,468.10, 11,685.84 and 4,639.70 is: 6,402.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468.10 : 11,685.84 = 4,639.70 : x
  2. Step 2: Convert to fraction form
    8,468.10/11,685.84 = 4,639.70/x
  3. Step 3: Cross multiply
    8,468.10x = 11,685.84 × 4,639.70
  4. Step 4: Simplify right side
    8,468.10x = 54,218,768.65
  5. Step 5: Solve for x
    x = 54,218,768.65/8,468.10
  6. Step 6: Final answer
    x = 6,402.71

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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.