Home / 10,072.68-15,109.05-3,409.23

Finding the Fourth Proportional to 10,072.68, 15,109.05 and 3,409.23

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Solution

The fourth proportional to 10,072.68, 15,109.05 and 3,409.23 is: 5,113.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,072.68 : 15,109.05 = 3,409.23 : x
  2. Step 2: Convert to fraction form
    10,072.68/15,109.05 = 3,409.23/x
  3. Step 3: Cross multiply
    10,072.68x = 15,109.05 × 3,409.23
  4. Step 4: Simplify right side
    10,072.68x = 51,510,226.53
  5. Step 5: Solve for x
    x = 51,510,226.53/10,072.68
  6. Step 6: Final answer
    x = 5,113.86

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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.