Home / 13,429.07-20,144.03-6,409.83

Finding the Fourth Proportional to 13,429.07, 20,144.03 and 6,409.83

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Solution

The fourth proportional to 13,429.07, 20,144.03 and 6,409.83 is: 9,614.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.07 : 20,144.03 = 6,409.83 : x
  2. Step 2: Convert to fraction form
    13,429.07/20,144.03 = 6,409.83/x
  3. Step 3: Cross multiply
    13,429.07x = 20,144.03 × 6,409.83
  4. Step 4: Simplify right side
    13,429.07x = 129,119,851.31
  5. Step 5: Solve for x
    x = 129,119,851.31/13,429.07
  6. Step 6: Final answer
    x = 9,614.95

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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.