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Finding the Fourth Proportional to 8,785.43, 12,124.14 and 4,806.74

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Solution

The fourth proportional to 8,785.43, 12,124.14 and 4,806.74 is: 6,633.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.43 : 12,124.14 = 4,806.74 : x
  2. Step 2: Convert to fraction form
    8,785.43/12,124.14 = 4,806.74/x
  3. Step 3: Cross multiply
    8,785.43x = 12,124.14 × 4,806.74
  4. Step 4: Simplify right side
    8,785.43x = 58,277,619.01
  5. Step 5: Solve for x
    x = 58,277,619.01/8,785.43
  6. Step 6: Final answer
    x = 6,633.44

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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.