Home / 13,290.72-19,936.04-6,268.40

Finding the Fourth Proportional to 13,290.72, 19,936.04 and 6,268.40

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Solution

The fourth proportional to 13,290.72, 19,936.04 and 6,268.40 is: 9,402.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.72 : 19,936.04 = 6,268.40 : x
  2. Step 2: Convert to fraction form
    13,290.72/19,936.04 = 6,268.40/x
  3. Step 3: Cross multiply
    13,290.72x = 19,936.04 × 6,268.40
  4. Step 4: Simplify right side
    13,290.72x = 124,967,073.14
  5. Step 5: Solve for x
    x = 124,967,073.14/13,290.72
  6. Step 6: Final answer
    x = 9,402.58

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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.