Home / 13,378.55-20,072.48-5,983.79

Finding the Fourth Proportional to 13,378.55, 20,072.48 and 5,983.79

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Solution

The fourth proportional to 13,378.55, 20,072.48 and 5,983.79 is: 8,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.55 : 20,072.48 = 5,983.79 : x
  2. Step 2: Convert to fraction form
    13,378.55/20,072.48 = 5,983.79/x
  3. Step 3: Cross multiply
    13,378.55x = 20,072.48 × 5,983.79
  4. Step 4: Simplify right side
    13,378.55x = 120,109,374.82
  5. Step 5: Solve for x
    x = 120,109,374.82/13,378.55
  6. Step 6: Final answer
    x = 8,977.76

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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.