Home / 12,553.51-18,829.78-3,788.19

Finding the Fourth Proportional to 12,553.51, 18,829.78 and 3,788.19

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Solution

The fourth proportional to 12,553.51, 18,829.78 and 3,788.19 is: 5,682.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.51 : 18,829.78 = 3,788.19 : x
  2. Step 2: Convert to fraction form
    12,553.51/18,829.78 = 3,788.19/x
  3. Step 3: Cross multiply
    12,553.51x = 18,829.78 × 3,788.19
  4. Step 4: Simplify right side
    12,553.51x = 71,330,784.30
  5. Step 5: Solve for x
    x = 71,330,784.30/12,553.51
  6. Step 6: Final answer
    x = 5,682.14

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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.