Home / 13,968.72-20,955.60-6,177.60

Finding the Fourth Proportional to 13,968.72, 20,955.60 and 6,177.60

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Solution

The fourth proportional to 13,968.72, 20,955.60 and 6,177.60 is: 9,267.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.72 : 20,955.60 = 6,177.60 : x
  2. Step 2: Convert to fraction form
    13,968.72/20,955.60 = 6,177.60/x
  3. Step 3: Cross multiply
    13,968.72x = 20,955.60 × 6,177.60
  4. Step 4: Simplify right side
    13,968.72x = 129,455,314.56
  5. Step 5: Solve for x
    x = 129,455,314.56/13,968.72
  6. Step 6: Final answer
    x = 9,267.51

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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.