Home / 8,247.09-12,351.50-8,185.63

Finding the Fourth Proportional to 8,247.09, 12,351.50 and 8,185.63

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Solution

The fourth proportional to 8,247.09, 12,351.50 and 8,185.63 is: 12,259.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,247.09 : 12,351.50 = 8,185.63 : x
  2. Step 2: Convert to fraction form
    8,247.09/12,351.50 = 8,185.63/x
  3. Step 3: Cross multiply
    8,247.09x = 12,351.50 × 8,185.63
  4. Step 4: Simplify right side
    8,247.09x = 101,104,808.95
  5. Step 5: Solve for x
    x = 101,104,808.95/8,247.09
  6. Step 6: Final answer
    x = 12,259.45

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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.