Home / 9,918.48-13,689.36-5,727

Finding the Fourth Proportional to 9,918.48, 13,689.36 and 5,727

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Solution

The fourth proportional to 9,918.48, 13,689.36 and 5,727 is: 7,904.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.48 : 13,689.36 = 5,727 : x
  2. Step 2: Convert to fraction form
    9,918.48/13,689.36 = 5,727/x
  3. Step 3: Cross multiply
    9,918.48x = 13,689.36 × 5,727
  4. Step 4: Simplify right side
    9,918.48x = 78,398,964.72
  5. Step 5: Solve for x
    x = 78,398,964.72/9,918.48
  6. Step 6: Final answer
    x = 7,904.33

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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.