Home / 13,623.50-20,435.70-3,762.74

Finding the Fourth Proportional to 13,623.50, 20,435.70 and 3,762.74

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Solution

The fourth proportional to 13,623.50, 20,435.70 and 3,762.74 is: 5,644.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.50 : 20,435.70 = 3,762.74 : x
  2. Step 2: Convert to fraction form
    13,623.50/20,435.70 = 3,762.74/x
  3. Step 3: Cross multiply
    13,623.50x = 20,435.70 × 3,762.74
  4. Step 4: Simplify right side
    13,623.50x = 76,894,225.82
  5. Step 5: Solve for x
    x = 76,894,225.82/13,623.50
  6. Step 6: Final answer
    x = 5,644.23

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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.