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Finding the Fourth Proportional to 19,162, 26,443.30 and 10,778.52

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Solution

The fourth proportional to 19,162, 26,443.30 and 10,778.52 is: 14,874.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,162 : 26,443.30 = 10,778.52 : x
  2. Step 2: Convert to fraction form
    19,162/26,443.30 = 10,778.52/x
  3. Step 3: Cross multiply
    19,162x = 26,443.30 × 10,778.52
  4. Step 4: Simplify right side
    19,162x = 285,019,637.92
  5. Step 5: Solve for x
    x = 285,019,637.92/19,162
  6. Step 6: Final answer
    x = 14,874.21

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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.