Home / 13,115.55-19,667.54-3,753.44

Finding the Fourth Proportional to 13,115.55, 19,667.54 and 3,753.44

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Solution

The fourth proportional to 13,115.55, 19,667.54 and 3,753.44 is: 5,628.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.55 : 19,667.54 = 3,753.44 : x
  2. Step 2: Convert to fraction form
    13,115.55/19,667.54 = 3,753.44/x
  3. Step 3: Cross multiply
    13,115.55x = 19,667.54 × 3,753.44
  4. Step 4: Simplify right side
    13,115.55x = 73,820,943.79
  5. Step 5: Solve for x
    x = 73,820,943.79/13,115.55
  6. Step 6: Final answer
    x = 5,628.50

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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.