Home / 8,749.62-13,124.36-2,906.21

Finding the Fourth Proportional to 8,749.62, 13,124.36 and 2,906.21

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Solution

The fourth proportional to 8,749.62, 13,124.36 and 2,906.21 is: 4,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.62 : 13,124.36 = 2,906.21 : x
  2. Step 2: Convert to fraction form
    8,749.62/13,124.36 = 2,906.21/x
  3. Step 3: Cross multiply
    8,749.62x = 13,124.36 × 2,906.21
  4. Step 4: Simplify right side
    8,749.62x = 38,142,186.35
  5. Step 5: Solve for x
    x = 38,142,186.35/8,749.62
  6. Step 6: Final answer
    x = 4,359.30

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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.