Home / 13,709.48-20,551.46-6,319.85

Finding the Fourth Proportional to 13,709.48, 20,551.46 and 6,319.85

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Solution

The fourth proportional to 13,709.48, 20,551.46 and 6,319.85 is: 9,473.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709.48 : 20,551.46 = 6,319.85 : x
  2. Step 2: Convert to fraction form
    13,709.48/20,551.46 = 6,319.85/x
  3. Step 3: Cross multiply
    13,709.48x = 20,551.46 × 6,319.85
  4. Step 4: Simplify right side
    13,709.48x = 129,882,010.12
  5. Step 5: Solve for x
    x = 129,882,010.12/13,709.48
  6. Step 6: Final answer
    x = 9,473.89

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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.