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Finding the Fourth Proportional to 8,993.18, 13,495.76 and 3,149.78

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Solution

The fourth proportional to 8,993.18, 13,495.76 and 3,149.78 is: 4,726.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.18 : 13,495.76 = 3,149.78 : x
  2. Step 2: Convert to fraction form
    8,993.18/13,495.76 = 3,149.78/x
  3. Step 3: Cross multiply
    8,993.18x = 13,495.76 × 3,149.78
  4. Step 4: Simplify right side
    8,993.18x = 42,508,674.93
  5. Step 5: Solve for x
    x = 42,508,674.93/8,993.18
  6. Step 6: Final answer
    x = 4,726.77

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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.