Home / 6,871.23-10,306.85-3,947.67

Finding the Fourth Proportional to 6,871.23, 10,306.85 and 3,947.67

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Solution

The fourth proportional to 6,871.23, 10,306.85 and 3,947.67 is: 5,921.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.23 : 10,306.85 = 3,947.67 : x
  2. Step 2: Convert to fraction form
    6,871.23/10,306.85 = 3,947.67/x
  3. Step 3: Cross multiply
    6,871.23x = 10,306.85 × 3,947.67
  4. Step 4: Simplify right side
    6,871.23x = 40,688,022.80
  5. Step 5: Solve for x
    x = 40,688,022.80/6,871.23
  6. Step 6: Final answer
    x = 5,921.51

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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.