Home / 8,785.78-13,182.18-3,858.28

Finding the Fourth Proportional to 8,785.78, 13,182.18 and 3,858.28

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Solution

The fourth proportional to 8,785.78, 13,182.18 and 3,858.28 is: 5,788.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.78 : 13,182.18 = 3,858.28 : x
  2. Step 2: Convert to fraction form
    8,785.78/13,182.18 = 3,858.28/x
  3. Step 3: Cross multiply
    8,785.78x = 13,182.18 × 3,858.28
  4. Step 4: Simplify right side
    8,785.78x = 50,860,541.45
  5. Step 5: Solve for x
    x = 50,860,541.45/8,785.78
  6. Step 6: Final answer
    x = 5,788.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.