Home / 8,361.36-12,537.72-3,430.08

Finding the Fourth Proportional to 8,361.36, 12,537.72 and 3,430.08

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Solution

The fourth proportional to 8,361.36, 12,537.72 and 3,430.08 is: 5,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.36 : 12,537.72 = 3,430.08 : x
  2. Step 2: Convert to fraction form
    8,361.36/12,537.72 = 3,430.08/x
  3. Step 3: Cross multiply
    8,361.36x = 12,537.72 × 3,430.08
  4. Step 4: Simplify right side
    8,361.36x = 43,005,382.62
  5. Step 5: Solve for x
    x = 43,005,382.62/8,361.36
  6. Step 6: Final answer
    x = 5,143.35

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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.