Home / 12,553.74-18,830.52-3,788.34

Finding the Fourth Proportional to 12,553.74, 18,830.52 and 3,788.34

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Solution

The fourth proportional to 12,553.74, 18,830.52 and 3,788.34 is: 5,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.74 : 18,830.52 = 3,788.34 : x
  2. Step 2: Convert to fraction form
    12,553.74/18,830.52 = 3,788.34/x
  3. Step 3: Cross multiply
    12,553.74x = 18,830.52 × 3,788.34
  4. Step 4: Simplify right side
    12,553.74x = 71,336,412.14
  5. Step 5: Solve for x
    x = 71,336,412.14/12,553.74
  6. Step 6: Final answer
    x = 5,682.48

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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.