Home / 19,161.20-26,443.32-10,777.70

Finding the Fourth Proportional to 19,161.20, 26,443.32 and 10,777.70

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Solution

The fourth proportional to 19,161.20, 26,443.32 and 10,777.70 is: 14,873.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,161.20 : 26,443.32 = 10,777.70 : x
  2. Step 2: Convert to fraction form
    19,161.20/26,443.32 = 10,777.70/x
  3. Step 3: Cross multiply
    19,161.20x = 26,443.32 × 10,777.70
  4. Step 4: Simplify right side
    19,161.20x = 284,998,169.96
  5. Step 5: Solve for x
    x = 284,998,169.96/19,161.20
  6. Step 6: Final answer
    x = 14,873.71

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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.