Home / 13,561.83-20,342.07-3,700.89

Finding the Fourth Proportional to 13,561.83, 20,342.07 and 3,700.89

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Solution

The fourth proportional to 13,561.83, 20,342.07 and 3,700.89 is: 5,551.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.83 : 20,342.07 = 3,700.89 : x
  2. Step 2: Convert to fraction form
    13,561.83/20,342.07 = 3,700.89/x
  3. Step 3: Cross multiply
    13,561.83x = 20,342.07 × 3,700.89
  4. Step 4: Simplify right side
    13,561.83x = 75,283,763.44
  5. Step 5: Solve for x
    x = 75,283,763.44/13,561.83
  6. Step 6: Final answer
    x = 5,551.15

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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.