Home / 13,771.07-20,656.61-3,775.89

Finding the Fourth Proportional to 13,771.07, 20,656.61 and 3,775.89

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Solution

The fourth proportional to 13,771.07, 20,656.61 and 3,775.89 is: 5,663.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.07 : 20,656.61 = 3,775.89 : x
  2. Step 2: Convert to fraction form
    13,771.07/20,656.61 = 3,775.89/x
  3. Step 3: Cross multiply
    13,771.07x = 20,656.61 × 3,775.89
  4. Step 4: Simplify right side
    13,771.07x = 77,997,087.13
  5. Step 5: Solve for x
    x = 77,997,087.13/13,771.07
  6. Step 6: Final answer
    x = 5,663.84

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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.