Home / 13,287.81-19,918.04-5,895.75

Finding the Fourth Proportional to 13,287.81, 19,918.04 and 5,895.75

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Solution

The fourth proportional to 13,287.81, 19,918.04 and 5,895.75 is: 8,837.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287.81 : 19,918.04 = 5,895.75 : x
  2. Step 2: Convert to fraction form
    13,287.81/19,918.04 = 5,895.75/x
  3. Step 3: Cross multiply
    13,287.81x = 19,918.04 × 5,895.75
  4. Step 4: Simplify right side
    13,287.81x = 117,431,754.85
  5. Step 5: Solve for x
    x = 117,431,754.85/13,287.81
  6. Step 6: Final answer
    x = 8,837.56

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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.