Home / 13,758.84-20,635.63-3,895.74

Finding the Fourth Proportional to 13,758.84, 20,635.63 and 3,895.74

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Solution

The fourth proportional to 13,758.84, 20,635.63 and 3,895.74 is: 5,842.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.84 : 20,635.63 = 3,895.74 : x
  2. Step 2: Convert to fraction form
    13,758.84/20,635.63 = 3,895.74/x
  3. Step 3: Cross multiply
    13,758.84x = 20,635.63 × 3,895.74
  4. Step 4: Simplify right side
    13,758.84x = 80,391,049.22
  5. Step 5: Solve for x
    x = 80,391,049.22/13,758.84
  6. Step 6: Final answer
    x = 5,842.87

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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.