Home / 19,183.50-28,788.30-6,871.50

Finding the Fourth Proportional to 19,183.50, 28,788.30 and 6,871.50

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Solution

The fourth proportional to 19,183.50, 28,788.30 and 6,871.50 is: 10,311.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,183.50 : 28,788.30 = 6,871.50 : x
  2. Step 2: Convert to fraction form
    19,183.50/28,788.30 = 6,871.50/x
  3. Step 3: Cross multiply
    19,183.50x = 28,788.30 × 6,871.50
  4. Step 4: Simplify right side
    19,183.50x = 197,818,803.45
  5. Step 5: Solve for x
    x = 197,818,803.45/19,183.50
  6. Step 6: Final answer
    x = 10,311.92

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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.