Home / 13,967.21-20,950.75-5,647.12

Finding the Fourth Proportional to 13,967.21, 20,950.75 and 5,647.12

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Solution

The fourth proportional to 13,967.21, 20,950.75 and 5,647.12 is: 8,470.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,967.21 : 20,950.75 = 5,647.12 : x
  2. Step 2: Convert to fraction form
    13,967.21/20,950.75 = 5,647.12/x
  3. Step 3: Cross multiply
    13,967.21x = 20,950.75 × 5,647.12
  4. Step 4: Simplify right side
    13,967.21x = 118,311,399.34
  5. Step 5: Solve for x
    x = 118,311,399.34/13,967.21
  6. Step 6: Final answer
    x = 8,470.66

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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.