Home / 17,550.68-26,320.55-8,780.81

Finding the Fourth Proportional to 17,550.68, 26,320.55 and 8,780.81

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Solution

The fourth proportional to 17,550.68, 26,320.55 and 8,780.81 is: 13,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,550.68 : 26,320.55 = 8,780.81 : x
  2. Step 2: Convert to fraction form
    17,550.68/26,320.55 = 8,780.81/x
  3. Step 3: Cross multiply
    17,550.68x = 26,320.55 × 8,780.81
  4. Step 4: Simplify right side
    17,550.68x = 231,115,573.14
  5. Step 5: Solve for x
    x = 231,115,573.14/17,550.68
  6. Step 6: Final answer
    x = 13,168.47

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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.