Home / 13,623.92-20,429.64-6,228.08

Finding the Fourth Proportional to 13,623.92, 20,429.64 and 6,228.08

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Solution

The fourth proportional to 13,623.92, 20,429.64 and 6,228.08 is: 9,339.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.92 : 20,429.64 = 6,228.08 : x
  2. Step 2: Convert to fraction form
    13,623.92/20,429.64 = 6,228.08/x
  3. Step 3: Cross multiply
    13,623.92x = 20,429.64 × 6,228.08
  4. Step 4: Simplify right side
    13,623.92x = 127,237,432.29
  5. Step 5: Solve for x
    x = 127,237,432.29/13,623.92
  6. Step 6: Final answer
    x = 9,339.27

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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.