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Finding the Fourth Proportional to 13,800.44, 20,700.18 and 4,441.10

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Solution

The fourth proportional to 13,800.44, 20,700.18 and 4,441.10 is: 6,661.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.44 : 20,700.18 = 4,441.10 : x
  2. Step 2: Convert to fraction form
    13,800.44/20,700.18 = 4,441.10/x
  3. Step 3: Cross multiply
    13,800.44x = 20,700.18 × 4,441.10
  4. Step 4: Simplify right side
    13,800.44x = 91,931,465.90
  5. Step 5: Solve for x
    x = 91,931,465.90/13,800.44
  6. Step 6: Final answer
    x = 6,661.49

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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.