Home / 13,561.40-20,342.10-3,701.68

Finding the Fourth Proportional to 13,561.40, 20,342.10 and 3,701.68

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Solution

The fourth proportional to 13,561.40, 20,342.10 and 3,701.68 is: 5,552.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.40 : 20,342.10 = 3,701.68 : x
  2. Step 2: Convert to fraction form
    13,561.40/20,342.10 = 3,701.68/x
  3. Step 3: Cross multiply
    13,561.40x = 20,342.10 × 3,701.68
  4. Step 4: Simplify right side
    13,561.40x = 75,299,944.73
  5. Step 5: Solve for x
    x = 75,299,944.73/13,561.40
  6. Step 6: Final answer
    x = 5,552.52

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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.