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Finding the Fourth Proportional to 13,498.79, 20,262.29 and 6,484.79

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Solution

The fourth proportional to 13,498.79, 20,262.29 and 6,484.79 is: 9,733.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,498.79 : 20,262.29 = 6,484.79 : x
  2. Step 2: Convert to fraction form
    13,498.79/20,262.29 = 6,484.79/x
  3. Step 3: Cross multiply
    13,498.79x = 20,262.29 × 6,484.79
  4. Step 4: Simplify right side
    13,498.79x = 131,396,713.80
  5. Step 5: Solve for x
    x = 131,396,713.80/13,498.79
  6. Step 6: Final answer
    x = 9,733.97

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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.