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Finding the Fourth Proportional to 17,775.65, 26,645.78 and 8,399.05

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Solution

The fourth proportional to 17,775.65, 26,645.78 and 8,399.05 is: 12,590.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,775.65 : 26,645.78 = 8,399.05 : x
  2. Step 2: Convert to fraction form
    17,775.65/26,645.78 = 8,399.05/x
  3. Step 3: Cross multiply
    17,775.65x = 26,645.78 × 8,399.05
  4. Step 4: Simplify right side
    17,775.65x = 223,799,238.51
  5. Step 5: Solve for x
    x = 223,799,238.51/17,775.65
  6. Step 6: Final answer
    x = 12,590.21

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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.