Home / 8,961.98-13,445.68-3,622.40

Finding the Fourth Proportional to 8,961.98, 13,445.68 and 3,622.40

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Solution

The fourth proportional to 8,961.98, 13,445.68 and 3,622.40 is: 5,434.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.98 : 13,445.68 = 3,622.40 : x
  2. Step 2: Convert to fraction form
    8,961.98/13,445.68 = 3,622.40/x
  3. Step 3: Cross multiply
    8,961.98x = 13,445.68 × 3,622.40
  4. Step 4: Simplify right side
    8,961.98x = 48,705,631.23
  5. Step 5: Solve for x
    x = 48,705,631.23/8,961.98
  6. Step 6: Final answer
    x = 5,434.70

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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.