Home / 19,143.04-28,716.78-5,103.26

Finding the Fourth Proportional to 19,143.04, 28,716.78 and 5,103.26

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Solution

The fourth proportional to 19,143.04, 28,716.78 and 5,103.26 is: 7,655.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.04 : 28,716.78 = 5,103.26 : x
  2. Step 2: Convert to fraction form
    19,143.04/28,716.78 = 5,103.26/x
  3. Step 3: Cross multiply
    19,143.04x = 28,716.78 × 5,103.26
  4. Step 4: Simplify right side
    19,143.04x = 146,549,194.70
  5. Step 5: Solve for x
    x = 146,549,194.70/19,143.04
  6. Step 6: Final answer
    x = 7,655.48

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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.