Home / 13,512.75-20,291.54-8,351.43

Finding the Fourth Proportional to 13,512.75, 20,291.54 and 8,351.43

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Solution

The fourth proportional to 13,512.75, 20,291.54 and 8,351.43 is: 12,541.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.75 : 20,291.54 = 8,351.43 : x
  2. Step 2: Convert to fraction form
    13,512.75/20,291.54 = 8,351.43/x
  3. Step 3: Cross multiply
    13,512.75x = 20,291.54 × 8,351.43
  4. Step 4: Simplify right side
    13,512.75x = 169,463,334.15
  5. Step 5: Solve for x
    x = 169,463,334.15/13,512.75
  6. Step 6: Final answer
    x = 12,541.00

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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.