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Finding the Fourth Proportional to 14,494.92, 20,019.30 and 9,771

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Solution

The fourth proportional to 14,494.92, 20,019.30 and 9,771 is: 13,494.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,494.92 : 20,019.30 = 9,771 : x
  2. Step 2: Convert to fraction form
    14,494.92/20,019.30 = 9,771/x
  3. Step 3: Cross multiply
    14,494.92x = 20,019.30 × 9,771
  4. Step 4: Simplify right side
    14,494.92x = 195,608,580.30
  5. Step 5: Solve for x
    x = 195,608,580.30/14,494.92
  6. Step 6: Final answer
    x = 13,494.97

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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.