Home / 18,320.93-27,478.91-5,174.36

Finding the Fourth Proportional to 18,320.93, 27,478.91 and 5,174.36

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Solution

The fourth proportional to 18,320.93, 27,478.91 and 5,174.36 is: 7,760.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.93 : 27,478.91 = 5,174.36 : x
  2. Step 2: Convert to fraction form
    18,320.93/27,478.91 = 5,174.36/x
  3. Step 3: Cross multiply
    18,320.93x = 27,478.91 × 5,174.36
  4. Step 4: Simplify right side
    18,320.93x = 142,185,746.88
  5. Step 5: Solve for x
    x = 142,185,746.88/18,320.93
  6. Step 6: Final answer
    x = 7,760.84

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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.