Home / 12,447.94-17,178.36-6,782.96

Finding the Fourth Proportional to 12,447.94, 17,178.36 and 6,782.96

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Solution

The fourth proportional to 12,447.94, 17,178.36 and 6,782.96 is: 9,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.94 : 17,178.36 = 6,782.96 : x
  2. Step 2: Convert to fraction form
    12,447.94/17,178.36 = 6,782.96/x
  3. Step 3: Cross multiply
    12,447.94x = 17,178.36 × 6,782.96
  4. Step 4: Simplify right side
    12,447.94x = 116,520,128.75
  5. Step 5: Solve for x
    x = 116,520,128.75/12,447.94
  6. Step 6: Final answer
    x = 9,360.60

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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.