Home / 8,785.12-12,123.37-4,806.19

Finding the Fourth Proportional to 8,785.12, 12,123.37 and 4,806.19

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Solution

The fourth proportional to 8,785.12, 12,123.37 and 4,806.19 is: 6,632.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.12 : 12,123.37 = 4,806.19 : x
  2. Step 2: Convert to fraction form
    8,785.12/12,123.37 = 4,806.19/x
  3. Step 3: Cross multiply
    8,785.12x = 12,123.37 × 4,806.19
  4. Step 4: Simplify right side
    8,785.12x = 58,267,135.01
  5. Step 5: Solve for x
    x = 58,267,135.01/8,785.12
  6. Step 6: Final answer
    x = 6,632.48

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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.