Home / 19,275.97-28,918.53-6,128.35

Finding the Fourth Proportional to 19,275.97, 28,918.53 and 6,128.35

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Solution

The fourth proportional to 19,275.97, 28,918.53 and 6,128.35 is: 9,193.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,275.97 : 28,918.53 = 6,128.35 : x
  2. Step 2: Convert to fraction form
    19,275.97/28,918.53 = 6,128.35/x
  3. Step 3: Cross multiply
    19,275.97x = 28,918.53 × 6,128.35
  4. Step 4: Simplify right side
    19,275.97x = 177,222,873.33
  5. Step 5: Solve for x
    x = 177,222,873.33/19,275.97
  6. Step 6: Final answer
    x = 9,193.98

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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.