Home / 8,658.64-11,949.96-4,931.92

Finding the Fourth Proportional to 8,658.64, 11,949.96 and 4,931.92

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Solution

The fourth proportional to 8,658.64, 11,949.96 and 4,931.92 is: 6,806.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658.64 : 11,949.96 = 4,931.92 : x
  2. Step 2: Convert to fraction form
    8,658.64/11,949.96 = 4,931.92/x
  3. Step 3: Cross multiply
    8,658.64x = 11,949.96 × 4,931.92
  4. Step 4: Simplify right side
    8,658.64x = 58,936,246.72
  5. Step 5: Solve for x
    x = 58,936,246.72/8,658.64
  6. Step 6: Final answer
    x = 6,806.64

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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.