Home / 13,570.38-20,355.35-3,709.67

Finding the Fourth Proportional to 13,570.38, 20,355.35 and 3,709.67

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Solution

The fourth proportional to 13,570.38, 20,355.35 and 3,709.67 is: 5,564.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.38 : 20,355.35 = 3,709.67 : x
  2. Step 2: Convert to fraction form
    13,570.38/20,355.35 = 3,709.67/x
  3. Step 3: Cross multiply
    13,570.38x = 20,355.35 × 3,709.67
  4. Step 4: Simplify right side
    13,570.38x = 75,511,510.91
  5. Step 5: Solve for x
    x = 75,511,510.91/13,570.38
  6. Step 6: Final answer
    x = 5,564.44

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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.