Home / 13,911.42-20,869.18-4,049.40

Finding the Fourth Proportional to 13,911.42, 20,869.18 and 4,049.40

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Solution

The fourth proportional to 13,911.42, 20,869.18 and 4,049.40 is: 6,074.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.42 : 20,869.18 = 4,049.40 : x
  2. Step 2: Convert to fraction form
    13,911.42/20,869.18 = 4,049.40/x
  3. Step 3: Cross multiply
    13,911.42x = 20,869.18 × 4,049.40
  4. Step 4: Simplify right side
    13,911.42x = 84,507,647.37
  5. Step 5: Solve for x
    x = 84,507,647.37/13,911.42
  6. Step 6: Final answer
    x = 6,074.70

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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.