Home / 9,869.36-13,619.30-5,392.90

Finding the Fourth Proportional to 9,869.36, 13,619.30 and 5,392.90

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Solution

The fourth proportional to 9,869.36, 13,619.30 and 5,392.90 is: 7,441.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.36 : 13,619.30 = 5,392.90 : x
  2. Step 2: Convert to fraction form
    9,869.36/13,619.30 = 5,392.90/x
  3. Step 3: Cross multiply
    9,869.36x = 13,619.30 × 5,392.90
  4. Step 4: Simplify right side
    9,869.36x = 73,447,522.97
  5. Step 5: Solve for x
    x = 73,447,522.97/9,869.36
  6. Step 6: Final answer
    x = 7,441.97

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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.