Home / 7,325.88-10,109.11-4,139.45

Finding the Fourth Proportional to 7,325.88, 10,109.11 and 4,139.45

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Solution

The fourth proportional to 7,325.88, 10,109.11 and 4,139.45 is: 5,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.88 : 10,109.11 = 4,139.45 : x
  2. Step 2: Convert to fraction form
    7,325.88/10,109.11 = 4,139.45/x
  3. Step 3: Cross multiply
    7,325.88x = 10,109.11 × 4,139.45
  4. Step 4: Simplify right side
    7,325.88x = 41,846,170.31
  5. Step 5: Solve for x
    x = 41,846,170.31/7,325.88
  6. Step 6: Final answer
    x = 5,712.10

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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.