Home / 13,847.49-20,770.55-5,081.72

Finding the Fourth Proportional to 13,847.49, 20,770.55 and 5,081.72

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Solution

The fourth proportional to 13,847.49, 20,770.55 and 5,081.72 is: 7,622.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,847.49 : 20,770.55 = 5,081.72 : x
  2. Step 2: Convert to fraction form
    13,847.49/20,770.55 = 5,081.72/x
  3. Step 3: Cross multiply
    13,847.49x = 20,770.55 × 5,081.72
  4. Step 4: Simplify right side
    13,847.49x = 105,549,990.08
  5. Step 5: Solve for x
    x = 105,549,990.08/13,847.49
  6. Step 6: Final answer
    x = 7,622.32

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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.