Home / 17,855.15-26,782.59-5,375.12

Finding the Fourth Proportional to 17,855.15, 26,782.59 and 5,375.12

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Solution

The fourth proportional to 17,855.15, 26,782.59 and 5,375.12 is: 8,062.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,855.15 : 26,782.59 = 5,375.12 : x
  2. Step 2: Convert to fraction form
    17,855.15/26,782.59 = 5,375.12/x
  3. Step 3: Cross multiply
    17,855.15x = 26,782.59 × 5,375.12
  4. Step 4: Simplify right side
    17,855.15x = 143,959,635.16
  5. Step 5: Solve for x
    x = 143,959,635.16/17,855.15
  6. Step 6: Final answer
    x = 8,062.64

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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.