Home / 8,785.09-12,123.41-4,806.21

Finding the Fourth Proportional to 8,785.09, 12,123.41 and 4,806.21

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Solution

The fourth proportional to 8,785.09, 12,123.41 and 4,806.21 is: 6,632.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.09 : 12,123.41 = 4,806.21 : x
  2. Step 2: Convert to fraction form
    8,785.09/12,123.41 = 4,806.21/x
  3. Step 3: Cross multiply
    8,785.09x = 12,123.41 × 4,806.21
  4. Step 4: Simplify right side
    8,785.09x = 58,267,654.38
  5. Step 5: Solve for x
    x = 58,267,654.38/8,785.09
  6. Step 6: Final answer
    x = 6,632.56

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Half scale
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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.