Home / 13,412.06-20,103.51-5,611.76

Finding the Fourth Proportional to 13,412.06, 20,103.51 and 5,611.76

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Solution

The fourth proportional to 13,412.06, 20,103.51 and 5,611.76 is: 8,411.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.06 : 20,103.51 = 5,611.76 : x
  2. Step 2: Convert to fraction form
    13,412.06/20,103.51 = 5,611.76/x
  3. Step 3: Cross multiply
    13,412.06x = 20,103.51 × 5,611.76
  4. Step 4: Simplify right side
    13,412.06x = 112,816,073.28
  5. Step 5: Solve for x
    x = 112,816,073.28/13,412.06
  6. Step 6: Final answer
    x = 8,411.54

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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.