Home / 13,824.40-20,746.32-12,502.48

Finding the Fourth Proportional to 13,824.40, 20,746.32 and 12,502.48

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Solution

The fourth proportional to 13,824.40, 20,746.32 and 12,502.48 is: 18,762.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.40 : 20,746.32 = 12,502.48 : x
  2. Step 2: Convert to fraction form
    13,824.40/20,746.32 = 12,502.48/x
  3. Step 3: Cross multiply
    13,824.40x = 20,746.32 × 12,502.48
  4. Step 4: Simplify right side
    13,824.40x = 259,380,450.87
  5. Step 5: Solve for x
    x = 259,380,450.87/13,824.40
  6. Step 6: Final answer
    x = 18,762.51

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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.