Home / 12,156.75-18,240.62-6,962.63

Finding the Fourth Proportional to 12,156.75, 18,240.62 and 6,962.63

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Solution

The fourth proportional to 12,156.75, 18,240.62 and 6,962.63 is: 10,447.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.75 : 18,240.62 = 6,962.63 : x
  2. Step 2: Convert to fraction form
    12,156.75/18,240.62 = 6,962.63/x
  3. Step 3: Cross multiply
    12,156.75x = 18,240.62 × 6,962.63
  4. Step 4: Simplify right side
    12,156.75x = 127,002,562.01
  5. Step 5: Solve for x
    x = 127,002,562.01/12,156.75
  6. Step 6: Final answer
    x = 10,447.08

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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.