Home / 19,290.78-26,629.89-11,333.52

Finding the Fourth Proportional to 19,290.78, 26,629.89 and 11,333.52

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Solution

The fourth proportional to 19,290.78, 26,629.89 and 11,333.52 is: 15,645.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.78 : 26,629.89 = 11,333.52 : x
  2. Step 2: Convert to fraction form
    19,290.78/26,629.89 = 11,333.52/x
  3. Step 3: Cross multiply
    19,290.78x = 26,629.89 × 11,333.52
  4. Step 4: Simplify right side
    19,290.78x = 301,810,390.91
  5. Step 5: Solve for x
    x = 301,810,390.91/19,290.78
  6. Step 6: Final answer
    x = 15,645.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.