Home / 12,625.10-18,916.05-8,002.70

Finding the Fourth Proportional to 12,625.10, 18,916.05 and 8,002.70

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Solution

The fourth proportional to 12,625.10, 18,916.05 and 8,002.70 is: 11,990.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.10 : 18,916.05 = 8,002.70 : x
  2. Step 2: Convert to fraction form
    12,625.10/18,916.05 = 8,002.70/x
  3. Step 3: Cross multiply
    12,625.10x = 18,916.05 × 8,002.70
  4. Step 4: Simplify right side
    12,625.10x = 151,379,473.34
  5. Step 5: Solve for x
    x = 151,379,473.34/12,625.10
  6. Step 6: Final answer
    x = 11,990.36

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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.