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Finding the Fourth Proportional to 8,404.40, 11,573.06 and 8,217.93

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Solution

The fourth proportional to 8,404.40, 11,573.06 and 8,217.93 is: 11,316.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,404.40 : 11,573.06 = 8,217.93 : x
  2. Step 2: Convert to fraction form
    8,404.40/11,573.06 = 8,217.93/x
  3. Step 3: Cross multiply
    8,404.40x = 11,573.06 × 8,217.93
  4. Step 4: Simplify right side
    8,404.40x = 95,106,498.01
  5. Step 5: Solve for x
    x = 95,106,498.01/8,404.40
  6. Step 6: Final answer
    x = 11,316.27

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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.