Home / 13,910.12-20,869.84-4,550.57

Finding the Fourth Proportional to 13,910.12, 20,869.84 and 4,550.57

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Solution

The fourth proportional to 13,910.12, 20,869.84 and 4,550.57 is: 6,827.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.12 : 20,869.84 = 4,550.57 : x
  2. Step 2: Convert to fraction form
    13,910.12/20,869.84 = 4,550.57/x
  3. Step 3: Cross multiply
    13,910.12x = 20,869.84 × 4,550.57
  4. Step 4: Simplify right side
    13,910.12x = 94,969,667.81
  5. Step 5: Solve for x
    x = 94,969,667.81/13,910.12
  6. Step 6: Final answer
    x = 6,827.38

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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.