Home / 19,120.48-28,683.64-9,755.39

Finding the Fourth Proportional to 19,120.48, 28,683.64 and 9,755.39

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Solution

The fourth proportional to 19,120.48, 28,683.64 and 9,755.39 is: 14,634.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.48 : 28,683.64 = 9,755.39 : x
  2. Step 2: Convert to fraction form
    19,120.48/28,683.64 = 9,755.39/x
  3. Step 3: Cross multiply
    19,120.48x = 28,683.64 × 9,755.39
  4. Step 4: Simplify right side
    19,120.48x = 279,820,142.14
  5. Step 5: Solve for x
    x = 279,820,142.14/19,120.48
  6. Step 6: Final answer
    x = 14,634.58

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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.