Home / 13,171.21-19,764.61-4,857.06

Finding the Fourth Proportional to 13,171.21, 19,764.61 and 4,857.06

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Solution

The fourth proportional to 13,171.21, 19,764.61 and 4,857.06 is: 7,288.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.21 : 19,764.61 = 4,857.06 : x
  2. Step 2: Convert to fraction form
    13,171.21/19,764.61 = 4,857.06/x
  3. Step 3: Cross multiply
    13,171.21x = 19,764.61 × 4,857.06
  4. Step 4: Simplify right side
    13,171.21x = 95,997,958.62
  5. Step 5: Solve for x
    x = 95,997,958.62/13,171.21
  6. Step 6: Final answer
    x = 7,288.47

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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.