Home / 8,539.29-12,808.90-3,974.46

Finding the Fourth Proportional to 8,539.29, 12,808.90 and 3,974.46

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Solution

The fourth proportional to 8,539.29, 12,808.90 and 3,974.46 is: 5,961.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.29 : 12,808.90 = 3,974.46 : x
  2. Step 2: Convert to fraction form
    8,539.29/12,808.90 = 3,974.46/x
  3. Step 3: Cross multiply
    8,539.29x = 12,808.90 × 3,974.46
  4. Step 4: Simplify right side
    8,539.29x = 50,908,460.69
  5. Step 5: Solve for x
    x = 50,908,460.69/8,539.29
  6. Step 6: Final answer
    x = 5,961.67

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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.