Home / 13,788.30-20,682.54-9,394.86

Finding the Fourth Proportional to 13,788.30, 20,682.54 and 9,394.86

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Solution

The fourth proportional to 13,788.30, 20,682.54 and 9,394.86 is: 14,092.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.30 : 20,682.54 = 9,394.86 : x
  2. Step 2: Convert to fraction form
    13,788.30/20,682.54 = 9,394.86/x
  3. Step 3: Cross multiply
    13,788.30x = 20,682.54 × 9,394.86
  4. Step 4: Simplify right side
    13,788.30x = 194,309,567.74
  5. Step 5: Solve for x
    x = 194,309,567.74/13,788.30
  6. Step 6: Final answer
    x = 14,092.35

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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.