Home / 19,344.26-28,999.38-7,665.68

Finding the Fourth Proportional to 19,344.26, 28,999.38 and 7,665.68

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Solution

The fourth proportional to 19,344.26, 28,999.38 and 7,665.68 is: 11,491.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,344.26 : 28,999.38 = 7,665.68 : x
  2. Step 2: Convert to fraction form
    19,344.26/28,999.38 = 7,665.68/x
  3. Step 3: Cross multiply
    19,344.26x = 28,999.38 × 7,665.68
  4. Step 4: Simplify right side
    19,344.26x = 222,299,967.28
  5. Step 5: Solve for x
    x = 222,299,967.28/19,344.26
  6. Step 6: Final answer
    x = 11,491.78

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1.5x scale

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.