Home / 13,380.12-20,069.40-4,019.93

Finding the Fourth Proportional to 13,380.12, 20,069.40 and 4,019.93

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Solution

The fourth proportional to 13,380.12, 20,069.40 and 4,019.93 is: 6,029.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.12 : 20,069.40 = 4,019.93 : x
  2. Step 2: Convert to fraction form
    13,380.12/20,069.40 = 4,019.93/x
  3. Step 3: Cross multiply
    13,380.12x = 20,069.40 × 4,019.93
  4. Step 4: Simplify right side
    13,380.12x = 80,677,686.02
  5. Step 5: Solve for x
    x = 80,677,686.02/13,380.12
  6. Step 6: Final answer
    x = 6,029.67

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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.