Home / 8,120.36-11,205.42-4,762.82

Finding the Fourth Proportional to 8,120.36, 11,205.42 and 4,762.82

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Solution

The fourth proportional to 8,120.36, 11,205.42 and 4,762.82 is: 6,572.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.36 : 11,205.42 = 4,762.82 : x
  2. Step 2: Convert to fraction form
    8,120.36/11,205.42 = 4,762.82/x
  3. Step 3: Cross multiply
    8,120.36x = 11,205.42 × 4,762.82
  4. Step 4: Simplify right side
    8,120.36x = 53,369,398.48
  5. Step 5: Solve for x
    x = 53,369,398.48/8,120.36
  6. Step 6: Final answer
    x = 6,572.29

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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.