Home / 13,827.13-20,740.66-11,040.75

Finding the Fourth Proportional to 13,827.13, 20,740.66 and 11,040.75

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Solution

The fourth proportional to 13,827.13, 20,740.66 and 11,040.75 is: 16,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.13 : 20,740.66 = 11,040.75 : x
  2. Step 2: Convert to fraction form
    13,827.13/20,740.66 = 11,040.75/x
  3. Step 3: Cross multiply
    13,827.13x = 20,740.66 × 11,040.75
  4. Step 4: Simplify right side
    13,827.13x = 228,992,441.90
  5. Step 5: Solve for x
    x = 228,992,441.90/13,827.13
  6. Step 6: Final answer
    x = 16,561.10

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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.