Home / 13,611.05-20,426.70-7,033.85

Finding the Fourth Proportional to 13,611.05, 20,426.70 and 7,033.85

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Solution

The fourth proportional to 13,611.05, 20,426.70 and 7,033.85 is: 10,556.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.05 : 20,426.70 = 7,033.85 : x
  2. Step 2: Convert to fraction form
    13,611.05/20,426.70 = 7,033.85/x
  3. Step 3: Cross multiply
    13,611.05x = 20,426.70 × 7,033.85
  4. Step 4: Simplify right side
    13,611.05x = 143,678,343.80
  5. Step 5: Solve for x
    x = 143,678,343.80/13,611.05
  6. Step 6: Final answer
    x = 10,556.01

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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.