Home / 13,788.12-20,682.18-9,636.24

Finding the Fourth Proportional to 13,788.12, 20,682.18 and 9,636.24

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Solution

The fourth proportional to 13,788.12, 20,682.18 and 9,636.24 is: 14,454.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.12 : 20,682.18 = 9,636.24 : x
  2. Step 2: Convert to fraction form
    13,788.12/20,682.18 = 9,636.24/x
  3. Step 3: Cross multiply
    13,788.12x = 20,682.18 × 9,636.24
  4. Step 4: Simplify right side
    13,788.12x = 199,298,334.75
  5. Step 5: Solve for x
    x = 199,298,334.75/13,788.12
  6. Step 6: Final answer
    x = 14,454.35

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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.