Home / 7,259.88-10,018.55-4,115.87

Finding the Fourth Proportional to 7,259.88, 10,018.55 and 4,115.87

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Solution

The fourth proportional to 7,259.88, 10,018.55 and 4,115.87 is: 5,679.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,259.88 : 10,018.55 = 4,115.87 : x
  2. Step 2: Convert to fraction form
    7,259.88/10,018.55 = 4,115.87/x
  3. Step 3: Cross multiply
    7,259.88x = 10,018.55 × 4,115.87
  4. Step 4: Simplify right side
    7,259.88x = 41,235,049.39
  5. Step 5: Solve for x
    x = 41,235,049.39/7,259.88
  6. Step 6: Final answer
    x = 5,679.85

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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.