Home / 9,129.24-13,688.13-4,192.54

Finding the Fourth Proportional to 9,129.24, 13,688.13 and 4,192.54

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Solution

The fourth proportional to 9,129.24, 13,688.13 and 4,192.54 is: 6,286.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.24 : 13,688.13 = 4,192.54 : x
  2. Step 2: Convert to fraction form
    9,129.24/13,688.13 = 4,192.54/x
  3. Step 3: Cross multiply
    9,129.24x = 13,688.13 × 4,192.54
  4. Step 4: Simplify right side
    9,129.24x = 57,388,032.55
  5. Step 5: Solve for x
    x = 57,388,032.55/9,129.24
  6. Step 6: Final answer
    x = 6,286.18

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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.