Home / 8,845.78-13,267.18-2,520.21

Finding the Fourth Proportional to 8,845.78, 13,267.18 and 2,520.21

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Solution

The fourth proportional to 8,845.78, 13,267.18 and 2,520.21 is: 3,779.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,845.78 : 13,267.18 = 2,520.21 : x
  2. Step 2: Convert to fraction form
    8,845.78/13,267.18 = 2,520.21/x
  3. Step 3: Cross multiply
    8,845.78x = 13,267.18 × 2,520.21
  4. Step 4: Simplify right side
    8,845.78x = 33,436,106.58
  5. Step 5: Solve for x
    x = 33,436,106.58/8,845.78
  6. Step 6: Final answer
    x = 3,779.89

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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.