Home / 13,651.53-20,465.12-5,329.62

Finding the Fourth Proportional to 13,651.53, 20,465.12 and 5,329.62

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Solution

The fourth proportional to 13,651.53, 20,465.12 and 5,329.62 is: 7,989.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651.53 : 20,465.12 = 5,329.62 : x
  2. Step 2: Convert to fraction form
    13,651.53/20,465.12 = 5,329.62/x
  3. Step 3: Cross multiply
    13,651.53x = 20,465.12 × 5,329.62
  4. Step 4: Simplify right side
    13,651.53x = 109,071,286.21
  5. Step 5: Solve for x
    x = 109,071,286.21/13,651.53
  6. Step 6: Final answer
    x = 7,989.67

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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.