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Finding the Fourth Proportional to 8,922.71, 13,386.77 and 2,998.91

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Solution

The fourth proportional to 8,922.71, 13,386.77 and 2,998.91 is: 4,499.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.71 : 13,386.77 = 2,998.91 : x
  2. Step 2: Convert to fraction form
    8,922.71/13,386.77 = 2,998.91/x
  3. Step 3: Cross multiply
    8,922.71x = 13,386.77 × 2,998.91
  4. Step 4: Simplify right side
    8,922.71x = 40,145,636.49
  5. Step 5: Solve for x
    x = 40,145,636.49/8,922.71
  6. Step 6: Final answer
    x = 4,499.27

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Double scale
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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.