Home / 13,572.54-20,355.53-5,670.78

Finding the Fourth Proportional to 13,572.54, 20,355.53 and 5,670.78

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Solution

The fourth proportional to 13,572.54, 20,355.53 and 5,670.78 is: 8,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.54 : 20,355.53 = 5,670.78 : x
  2. Step 2: Convert to fraction form
    13,572.54/20,355.53 = 5,670.78/x
  3. Step 3: Cross multiply
    13,572.54x = 20,355.53 × 5,670.78
  4. Step 4: Simplify right side
    13,572.54x = 115,431,704.06
  5. Step 5: Solve for x
    x = 115,431,704.06/13,572.54
  6. Step 6: Final answer
    x = 8,504.80

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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.