Home / 13,770.07-20,655.11-3,774.89

Finding the Fourth Proportional to 13,770.07, 20,655.11 and 3,774.89

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Solution

The fourth proportional to 13,770.07, 20,655.11 and 3,774.89 is: 5,662.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.07 : 20,655.11 = 3,774.89 : x
  2. Step 2: Convert to fraction form
    13,770.07/20,655.11 = 3,774.89/x
  3. Step 3: Cross multiply
    13,770.07x = 20,655.11 × 3,774.89
  4. Step 4: Simplify right side
    13,770.07x = 77,970,829.26
  5. Step 5: Solve for x
    x = 77,970,829.26/13,770.07
  6. Step 6: Final answer
    x = 5,662.34

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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.