Home / 13,611.81-20,398.56-10,826.12

Finding the Fourth Proportional to 13,611.81, 20,398.56 and 10,826.12

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Solution

The fourth proportional to 13,611.81, 20,398.56 and 10,826.12 is: 16,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.81 : 20,398.56 = 10,826.12 : x
  2. Step 2: Convert to fraction form
    13,611.81/20,398.56 = 10,826.12/x
  3. Step 3: Cross multiply
    13,611.81x = 20,398.56 × 10,826.12
  4. Step 4: Simplify right side
    13,611.81x = 220,837,258.39
  5. Step 5: Solve for x
    x = 220,837,258.39/13,611.81
  6. Step 6: Final answer
    x = 16,223.95

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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.