Home / 17,146.65-25,721.84-5,457.15

Finding the Fourth Proportional to 17,146.65, 25,721.84 and 5,457.15

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Solution

The fourth proportional to 17,146.65, 25,721.84 and 5,457.15 is: 8,186.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,146.65 : 25,721.84 = 5,457.15 : x
  2. Step 2: Convert to fraction form
    17,146.65/25,721.84 = 5,457.15/x
  3. Step 3: Cross multiply
    17,146.65x = 25,721.84 × 5,457.15
  4. Step 4: Simplify right side
    17,146.65x = 140,367,911.87
  5. Step 5: Solve for x
    x = 140,367,911.87/17,146.65
  6. Step 6: Final answer
    x = 8,186.32

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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.