Home / 12,628.85-17,427.93-6,963.80

Finding the Fourth Proportional to 12,628.85, 17,427.93 and 6,963.80

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Solution

The fourth proportional to 12,628.85, 17,427.93 and 6,963.80 is: 9,610.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.85 : 17,427.93 = 6,963.80 : x
  2. Step 2: Convert to fraction form
    12,628.85/17,427.93 = 6,963.80/x
  3. Step 3: Cross multiply
    12,628.85x = 17,427.93 × 6,963.80
  4. Step 4: Simplify right side
    12,628.85x = 121,364,531.79
  5. Step 5: Solve for x
    x = 121,364,531.79/12,628.85
  6. Step 6: Final answer
    x = 9,610.11

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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.