Home / 17,145.76-25,716.80-5,458.07

Finding the Fourth Proportional to 17,145.76, 25,716.80 and 5,458.07

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Solution

The fourth proportional to 17,145.76, 25,716.80 and 5,458.07 is: 8,186.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,145.76 : 25,716.80 = 5,458.07 : x
  2. Step 2: Convert to fraction form
    17,145.76/25,716.80 = 5,458.07/x
  3. Step 3: Cross multiply
    17,145.76x = 25,716.80 × 5,458.07
  4. Step 4: Simplify right side
    17,145.76x = 140,363,979.64
  5. Step 5: Solve for x
    x = 140,363,979.64/17,145.76
  6. Step 6: Final answer
    x = 8,186.51

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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.