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Finding the Fourth Proportional to 18,896.63, 28,344.94 and 5,045.63

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Solution

The fourth proportional to 18,896.63, 28,344.94 and 5,045.63 is: 7,568.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,896.63 : 28,344.94 = 5,045.63 : x
  2. Step 2: Convert to fraction form
    18,896.63/28,344.94 = 5,045.63/x
  3. Step 3: Cross multiply
    18,896.63x = 28,344.94 × 5,045.63
  4. Step 4: Simplify right side
    18,896.63x = 143,017,925.27
  5. Step 5: Solve for x
    x = 143,017,925.27/18,896.63
  6. Step 6: Final answer
    x = 7,568.44

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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.