Home / 11,704.78-16,152.56-6,399.58

Finding the Fourth Proportional to 11,704.78, 16,152.56 and 6,399.58

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Solution

The fourth proportional to 11,704.78, 16,152.56 and 6,399.58 is: 8,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,704.78 : 16,152.56 = 6,399.58 : x
  2. Step 2: Convert to fraction form
    11,704.78/16,152.56 = 6,399.58/x
  3. Step 3: Cross multiply
    11,704.78x = 16,152.56 × 6,399.58
  4. Step 4: Simplify right side
    11,704.78x = 103,369,599.92
  5. Step 5: Solve for x
    x = 103,369,599.92/11,704.78
  6. Step 6: Final answer
    x = 8,831.40

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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.