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Finding the Fourth Proportional to 12,563.03, 18,830.19 and 7,018.94

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Solution

The fourth proportional to 12,563.03, 18,830.19 and 7,018.94 is: 10,520.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563.03 : 18,830.19 = 7,018.94 : x
  2. Step 2: Convert to fraction form
    12,563.03/18,830.19 = 7,018.94/x
  3. Step 3: Cross multiply
    12,563.03x = 18,830.19 × 7,018.94
  4. Step 4: Simplify right side
    12,563.03x = 132,167,973.80
  5. Step 5: Solve for x
    x = 132,167,973.80/12,563.03
  6. Step 6: Final answer
    x = 10,520.39

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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.