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Finding the Fourth Proportional to 8,404.75, 11,599.37 and 4,678.75

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Solution

The fourth proportional to 8,404.75, 11,599.37 and 4,678.75 is: 6,457.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,404.75 : 11,599.37 = 4,678.75 : x
  2. Step 2: Convert to fraction form
    8,404.75/11,599.37 = 4,678.75/x
  3. Step 3: Cross multiply
    8,404.75x = 11,599.37 × 4,678.75
  4. Step 4: Simplify right side
    8,404.75x = 54,270,552.39
  5. Step 5: Solve for x
    x = 54,270,552.39/8,404.75
  6. Step 6: Final answer
    x = 6,457.13

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Half scale
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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.