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Finding the Fourth Proportional to 8,604.86, 12,898.56 and 5,831.80

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Solution

The fourth proportional to 8,604.86, 12,898.56 and 5,831.80 is: 8,741.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.86 : 12,898.56 = 5,831.80 : x
  2. Step 2: Convert to fraction form
    8,604.86/12,898.56 = 5,831.80/x
  3. Step 3: Cross multiply
    8,604.86x = 12,898.56 × 5,831.80
  4. Step 4: Simplify right side
    8,604.86x = 75,221,822.21
  5. Step 5: Solve for x
    x = 75,221,822.21/8,604.86
  6. Step 6: Final answer
    x = 8,741.78

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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.