Home / 6,415.24-9,623.10-3,965.80

Finding the Fourth Proportional to 6,415.24, 9,623.10 and 3,965.80

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Solution

The fourth proportional to 6,415.24, 9,623.10 and 3,965.80 is: 5,948.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415.24 : 9,623.10 = 3,965.80 : x
  2. Step 2: Convert to fraction form
    6,415.24/9,623.10 = 3,965.80/x
  3. Step 3: Cross multiply
    6,415.24x = 9,623.10 × 3,965.80
  4. Step 4: Simplify right side
    6,415.24x = 38,163,289.98
  5. Step 5: Solve for x
    x = 38,163,289.98/6,415.24
  6. Step 6: Final answer
    x = 5,948.85

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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.