Home / 13,911.68-20,870.83-4,551.73

Finding the Fourth Proportional to 13,911.68, 20,870.83 and 4,551.73

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Solution

The fourth proportional to 13,911.68, 20,870.83 and 4,551.73 is: 6,828.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.68 : 20,870.83 = 4,551.73 : x
  2. Step 2: Convert to fraction form
    13,911.68/20,870.83 = 4,551.73/x
  3. Step 3: Cross multiply
    13,911.68x = 20,870.83 × 4,551.73
  4. Step 4: Simplify right side
    13,911.68x = 94,998,336.55
  5. Step 5: Solve for x
    x = 94,998,336.55/13,911.68
  6. Step 6: Final answer
    x = 6,828.67

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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.