Home / 13,186.20-19,776.18-3,823.74

Finding the Fourth Proportional to 13,186.20, 19,776.18 and 3,823.74

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Solution

The fourth proportional to 13,186.20, 19,776.18 and 3,823.74 is: 5,734.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.20 : 19,776.18 = 3,823.74 : x
  2. Step 2: Convert to fraction form
    13,186.20/19,776.18 = 3,823.74/x
  3. Step 3: Cross multiply
    13,186.20x = 19,776.18 × 3,823.74
  4. Step 4: Simplify right side
    13,186.20x = 75,618,970.51
  5. Step 5: Solve for x
    x = 75,618,970.51/13,186.20
  6. Step 6: Final answer
    x = 5,734.71

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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.