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Finding the Fourth Proportional to 8,361.90, 12,544.65 and 2,519.10

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Solution

The fourth proportional to 8,361.90, 12,544.65 and 2,519.10 is: 3,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.90 : 12,544.65 = 2,519.10 : x
  2. Step 2: Convert to fraction form
    8,361.90/12,544.65 = 2,519.10/x
  3. Step 3: Cross multiply
    8,361.90x = 12,544.65 × 2,519.10
  4. Step 4: Simplify right side
    8,361.90x = 31,601,227.82
  5. Step 5: Solve for x
    x = 31,601,227.82/8,361.90
  6. Step 6: Final answer
    x = 3,779.19

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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.