Home / 12,846.55-17,728.66-7,104.09

Finding the Fourth Proportional to 12,846.55, 17,728.66 and 7,104.09

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Solution

The fourth proportional to 12,846.55, 17,728.66 and 7,104.09 is: 9,803.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,846.55 : 17,728.66 = 7,104.09 : x
  2. Step 2: Convert to fraction form
    12,846.55/17,728.66 = 7,104.09/x
  3. Step 3: Cross multiply
    12,846.55x = 17,728.66 × 7,104.09
  4. Step 4: Simplify right side
    12,846.55x = 125,945,931.90
  5. Step 5: Solve for x
    x = 125,945,931.90/12,846.55
  6. Step 6: Final answer
    x = 9,803.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.