Home / 8,785.78-13,157.71-4,830.95

Finding the Fourth Proportional to 8,785.78, 13,157.71 and 4,830.95

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Solution

The fourth proportional to 8,785.78, 13,157.71 and 4,830.95 is: 7,234.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.78 : 13,157.71 = 4,830.95 : x
  2. Step 2: Convert to fraction form
    8,785.78/13,157.71 = 4,830.95/x
  3. Step 3: Cross multiply
    8,785.78x = 13,157.71 × 4,830.95
  4. Step 4: Simplify right side
    8,785.78x = 63,564,259.94
  5. Step 5: Solve for x
    x = 63,564,259.94/8,785.78
  6. Step 6: Final answer
    x = 7,234.90

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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.