Home / 13,340.46-20,014.23-3,980.52

Finding the Fourth Proportional to 13,340.46, 20,014.23 and 3,980.52

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Solution

The fourth proportional to 13,340.46, 20,014.23 and 3,980.52 is: 5,971.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.46 : 20,014.23 = 3,980.52 : x
  2. Step 2: Convert to fraction form
    13,340.46/20,014.23 = 3,980.52/x
  3. Step 3: Cross multiply
    13,340.46x = 20,014.23 × 3,980.52
  4. Step 4: Simplify right side
    13,340.46x = 79,667,042.80
  5. Step 5: Solve for x
    x = 79,667,042.80/13,340.46
  6. Step 6: Final answer
    x = 5,971.84

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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.