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Finding the Fourth Proportional to 8,719.25, 12,027.16 and 7,602.86

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Solution

The fourth proportional to 8,719.25, 12,027.16 and 7,602.86 is: 10,487.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.25 : 12,027.16 = 7,602.86 : x
  2. Step 2: Convert to fraction form
    8,719.25/12,027.16 = 7,602.86/x
  3. Step 3: Cross multiply
    8,719.25x = 12,027.16 × 7,602.86
  4. Step 4: Simplify right side
    8,719.25x = 91,440,831.87
  5. Step 5: Solve for x
    x = 91,440,831.87/8,719.25
  6. Step 6: Final answer
    x = 10,487.24

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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.