Home / 7,868.20-10,858.23-4,331.38

Finding the Fourth Proportional to 7,868.20, 10,858.23 and 4,331.38

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Solution

The fourth proportional to 7,868.20, 10,858.23 and 4,331.38 is: 5,977.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.20 : 10,858.23 = 4,331.38 : x
  2. Step 2: Convert to fraction form
    7,868.20/10,858.23 = 4,331.38/x
  3. Step 3: Cross multiply
    7,868.20x = 10,858.23 × 4,331.38
  4. Step 4: Simplify right side
    7,868.20x = 47,031,120.26
  5. Step 5: Solve for x
    x = 47,031,120.26/7,868.20
  6. Step 6: Final answer
    x = 5,977.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.