Home / 7,619.90-11,422.04-5,154.96

Finding the Fourth Proportional to 7,619.90, 11,422.04 and 5,154.96

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Solution

The fourth proportional to 7,619.90, 11,422.04 and 5,154.96 is: 7,727.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.90 : 11,422.04 = 5,154.96 : x
  2. Step 2: Convert to fraction form
    7,619.90/11,422.04 = 5,154.96/x
  3. Step 3: Cross multiply
    7,619.90x = 11,422.04 × 5,154.96
  4. Step 4: Simplify right side
    7,619.90x = 58,880,133.54
  5. Step 5: Solve for x
    x = 58,880,133.54/7,619.90
  6. Step 6: Final answer
    x = 7,727.16

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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.