Home / 9,540.30-13,165.65-5,291.75

Finding the Fourth Proportional to 9,540.30, 13,165.65 and 5,291.75

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Solution

The fourth proportional to 9,540.30, 13,165.65 and 5,291.75 is: 7,302.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,540.30 : 13,165.65 = 5,291.75 : x
  2. Step 2: Convert to fraction form
    9,540.30/13,165.65 = 5,291.75/x
  3. Step 3: Cross multiply
    9,540.30x = 13,165.65 × 5,291.75
  4. Step 4: Simplify right side
    9,540.30x = 69,669,361.30
  5. Step 5: Solve for x
    x = 69,669,361.30/9,540.30
  6. Step 6: Final answer
    x = 7,302.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.