Home / 8,110.78-12,144.26-4,206.98

Finding the Fourth Proportional to 8,110.78, 12,144.26 and 4,206.98

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Solution

The fourth proportional to 8,110.78, 12,144.26 and 4,206.98 is: 6,299.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.78 : 12,144.26 = 4,206.98 : x
  2. Step 2: Convert to fraction form
    8,110.78/12,144.26 = 4,206.98/x
  3. Step 3: Cross multiply
    8,110.78x = 12,144.26 × 4,206.98
  4. Step 4: Simplify right side
    8,110.78x = 51,090,699.81
  5. Step 5: Solve for x
    x = 51,090,699.81/8,110.78
  6. Step 6: Final answer
    x = 6,299.11

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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.