Home / 13,561.73-20,343.56-4,200.53

Finding the Fourth Proportional to 13,561.73, 20,343.56 and 4,200.53

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Solution

The fourth proportional to 13,561.73, 20,343.56 and 4,200.53 is: 6,301.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.73 : 20,343.56 = 4,200.53 : x
  2. Step 2: Convert to fraction form
    13,561.73/20,343.56 = 4,200.53/x
  3. Step 3: Cross multiply
    13,561.73x = 20,343.56 × 4,200.53
  4. Step 4: Simplify right side
    13,561.73x = 85,453,783.02
  5. Step 5: Solve for x
    x = 85,453,783.02/13,561.73
  6. Step 6: Final answer
    x = 6,301.10

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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.