Home / 12,290.60-16,960.70-6,913.62

Finding the Fourth Proportional to 12,290.60, 16,960.70 and 6,913.62

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Solution

The fourth proportional to 12,290.60, 16,960.70 and 6,913.62 is: 9,540.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290.60 : 16,960.70 = 6,913.62 : x
  2. Step 2: Convert to fraction form
    12,290.60/16,960.70 = 6,913.62/x
  3. Step 3: Cross multiply
    12,290.60x = 16,960.70 × 6,913.62
  4. Step 4: Simplify right side
    12,290.60x = 117,259,852.02
  5. Step 5: Solve for x
    x = 117,259,852.02/12,290.60
  6. Step 6: Final answer
    x = 9,540.61

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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.