Home / 13,370.88-20,069.28-6,450.24

Finding the Fourth Proportional to 13,370.88, 20,069.28 and 6,450.24

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Solution

The fourth proportional to 13,370.88, 20,069.28 and 6,450.24 is: 9,681.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.88 : 20,069.28 = 6,450.24 : x
  2. Step 2: Convert to fraction form
    13,370.88/20,069.28 = 6,450.24/x
  3. Step 3: Cross multiply
    13,370.88x = 20,069.28 × 6,450.24
  4. Step 4: Simplify right side
    13,370.88x = 129,451,672.63
  5. Step 5: Solve for x
    x = 129,451,672.63/13,370.88
  6. Step 6: Final answer
    x = 9,681.61

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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.