Home / 13,674.06-20,512.10-4,909.05

Finding the Fourth Proportional to 13,674.06, 20,512.10 and 4,909.05

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Solution

The fourth proportional to 13,674.06, 20,512.10 and 4,909.05 is: 7,363.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.06 : 20,512.10 = 4,909.05 : x
  2. Step 2: Convert to fraction form
    13,674.06/20,512.10 = 4,909.05/x
  3. Step 3: Cross multiply
    13,674.06x = 20,512.10 × 4,909.05
  4. Step 4: Simplify right side
    13,674.06x = 100,694,899.96
  5. Step 5: Solve for x
    x = 100,694,899.96/13,674.06
  6. Step 6: Final answer
    x = 7,363.94

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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.