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Finding the Fourth Proportional to 18,850.51, 28,275.83 and 6,370.64

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Solution

The fourth proportional to 18,850.51, 28,275.83 and 6,370.64 is: 9,555.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,850.51 : 28,275.83 = 6,370.64 : x
  2. Step 2: Convert to fraction form
    18,850.51/28,275.83 = 6,370.64/x
  3. Step 3: Cross multiply
    18,850.51x = 28,275.83 × 6,370.64
  4. Step 4: Simplify right side
    18,850.51x = 180,135,133.63
  5. Step 5: Solve for x
    x = 180,135,133.63/18,850.51
  6. Step 6: Final answer
    x = 9,555.98

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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.