Home / 13,460.12-20,190.24-5,674.40

Finding the Fourth Proportional to 13,460.12, 20,190.24 and 5,674.40

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Solution

The fourth proportional to 13,460.12, 20,190.24 and 5,674.40 is: 8,511.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,460.12 : 20,190.24 = 5,674.40 : x
  2. Step 2: Convert to fraction form
    13,460.12/20,190.24 = 5,674.40/x
  3. Step 3: Cross multiply
    13,460.12x = 20,190.24 × 5,674.40
  4. Step 4: Simplify right side
    13,460.12x = 114,567,396.90
  5. Step 5: Solve for x
    x = 114,567,396.90/13,460.12
  6. Step 6: Final answer
    x = 8,511.62

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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.