Home / 10,145.49-15,211.05-3,900.23

Finding the Fourth Proportional to 10,145.49, 15,211.05 and 3,900.23

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Solution

The fourth proportional to 10,145.49, 15,211.05 and 3,900.23 is: 5,847.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.49 : 15,211.05 = 3,900.23 : x
  2. Step 2: Convert to fraction form
    10,145.49/15,211.05 = 3,900.23/x
  3. Step 3: Cross multiply
    10,145.49x = 15,211.05 × 3,900.23
  4. Step 4: Simplify right side
    10,145.49x = 59,326,517.49
  5. Step 5: Solve for x
    x = 59,326,517.49/10,145.49
  6. Step 6: Final answer
    x = 5,847.58

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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.