Home / 13,623.48-20,434.80-3,763.36

Finding the Fourth Proportional to 13,623.48, 20,434.80 and 3,763.36

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Solution

The fourth proportional to 13,623.48, 20,434.80 and 3,763.36 is: 5,644.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.48 : 20,434.80 = 3,763.36 : x
  2. Step 2: Convert to fraction form
    13,623.48/20,434.80 = 3,763.36/x
  3. Step 3: Cross multiply
    13,623.48x = 20,434.80 × 3,763.36
  4. Step 4: Simplify right side
    13,623.48x = 76,903,508.93
  5. Step 5: Solve for x
    x = 76,903,508.93/13,623.48
  6. Step 6: Final answer
    x = 5,644.92

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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.