Home / 8,940.96-12,340.85-5,581.67

Finding the Fourth Proportional to 8,940.96, 12,340.85 and 5,581.67

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Solution

The fourth proportional to 8,940.96, 12,340.85 and 5,581.67 is: 7,704.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.96 : 12,340.85 = 5,581.67 : x
  2. Step 2: Convert to fraction form
    8,940.96/12,340.85 = 5,581.67/x
  3. Step 3: Cross multiply
    8,940.96x = 12,340.85 × 5,581.67
  4. Step 4: Simplify right side
    8,940.96x = 68,882,462.61
  5. Step 5: Solve for x
    x = 68,882,462.61/8,940.96
  6. Step 6: Final answer
    x = 7,704.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.