Home / 13,677.12-20,514.84-5,355.60

Finding the Fourth Proportional to 13,677.12, 20,514.84 and 5,355.60

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Solution

The fourth proportional to 13,677.12, 20,514.84 and 5,355.60 is: 8,033.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.12 : 20,514.84 = 5,355.60 : x
  2. Step 2: Convert to fraction form
    13,677.12/20,514.84 = 5,355.60/x
  3. Step 3: Cross multiply
    13,677.12x = 20,514.84 × 5,355.60
  4. Step 4: Simplify right side
    13,677.12x = 109,869,277.10
  5. Step 5: Solve for x
    x = 109,869,277.10/13,677.12
  6. Step 6: Final answer
    x = 8,033.07

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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.