Home / 15,858.66-23,786.10-4,172.79

Finding the Fourth Proportional to 15,858.66, 23,786.10 and 4,172.79

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Solution

The fourth proportional to 15,858.66, 23,786.10 and 4,172.79 is: 6,258.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,858.66 : 23,786.10 = 4,172.79 : x
  2. Step 2: Convert to fraction form
    15,858.66/23,786.10 = 4,172.79/x
  3. Step 3: Cross multiply
    15,858.66x = 23,786.10 × 4,172.79
  4. Step 4: Simplify right side
    15,858.66x = 99,254,400.22
  5. Step 5: Solve for x
    x = 99,254,400.22/15,858.66
  6. Step 6: Final answer
    x = 6,258.69

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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.