Home / 7,429.37-11,145.91-5,242.37

Finding the Fourth Proportional to 7,429.37, 11,145.91 and 5,242.37

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Solution

The fourth proportional to 7,429.37, 11,145.91 and 5,242.37 is: 7,864.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.37 : 11,145.91 = 5,242.37 : x
  2. Step 2: Convert to fraction form
    7,429.37/11,145.91 = 5,242.37/x
  3. Step 3: Cross multiply
    7,429.37x = 11,145.91 × 5,242.37
  4. Step 4: Simplify right side
    7,429.37x = 58,430,984.21
  5. Step 5: Solve for x
    x = 58,430,984.21/7,429.37
  6. Step 6: Final answer
    x = 7,864.86

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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.