Home / 19,454.83-29,138.32-11,647.15

Finding the Fourth Proportional to 19,454.83, 29,138.32 and 11,647.15

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Solution

The fourth proportional to 19,454.83, 29,138.32 and 11,647.15 is: 17,444.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,454.83 : 29,138.32 = 11,647.15 : x
  2. Step 2: Convert to fraction form
    19,454.83/29,138.32 = 11,647.15/x
  3. Step 3: Cross multiply
    19,454.83x = 29,138.32 × 11,647.15
  4. Step 4: Simplify right side
    19,454.83x = 339,378,383.79
  5. Step 5: Solve for x
    x = 339,378,383.79/19,454.83
  6. Step 6: Final answer
    x = 17,444.43

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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.