Home / 8,553.58-12,831.64-3,875.20

Finding the Fourth Proportional to 8,553.58, 12,831.64 and 3,875.20

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Solution

The fourth proportional to 8,553.58, 12,831.64 and 3,875.20 is: 5,813.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.58 : 12,831.64 = 3,875.20 : x
  2. Step 2: Convert to fraction form
    8,553.58/12,831.64 = 3,875.20/x
  3. Step 3: Cross multiply
    8,553.58x = 12,831.64 × 3,875.20
  4. Step 4: Simplify right side
    8,553.58x = 49,725,171.33
  5. Step 5: Solve for x
    x = 49,725,171.33/8,553.58
  6. Step 6: Final answer
    x = 5,813.38

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1.5x scale

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.