Home / 8,270.48-12,407.16-3,887.12

Finding the Fourth Proportional to 8,270.48, 12,407.16 and 3,887.12

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Solution

The fourth proportional to 8,270.48, 12,407.16 and 3,887.12 is: 5,831.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.48 : 12,407.16 = 3,887.12 : x
  2. Step 2: Convert to fraction form
    8,270.48/12,407.16 = 3,887.12/x
  3. Step 3: Cross multiply
    8,270.48x = 12,407.16 × 3,887.12
  4. Step 4: Simplify right side
    8,270.48x = 48,228,119.78
  5. Step 5: Solve for x
    x = 48,228,119.78/8,270.48
  6. Step 6: Final answer
    x = 5,831.36

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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.