Home / 8,509.90-11,747.37-4,972.54

Finding the Fourth Proportional to 8,509.90, 11,747.37 and 4,972.54

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Solution

The fourth proportional to 8,509.90, 11,747.37 and 4,972.54 is: 6,864.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,509.90 : 11,747.37 = 4,972.54 : x
  2. Step 2: Convert to fraction form
    8,509.90/11,747.37 = 4,972.54/x
  3. Step 3: Cross multiply
    8,509.90x = 11,747.37 × 4,972.54
  4. Step 4: Simplify right side
    8,509.90x = 58,414,267.22
  5. Step 5: Solve for x
    x = 58,414,267.22/8,509.90
  6. Step 6: Final answer
    x = 6,864.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.