Home / 11,664.35-17,490.10-7,970.75

Finding the Fourth Proportional to 11,664.35, 17,490.10 and 7,970.75

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Solution

The fourth proportional to 11,664.35, 17,490.10 and 7,970.75 is: 11,951.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,664.35 : 17,490.10 = 7,970.75 : x
  2. Step 2: Convert to fraction form
    11,664.35/17,490.10 = 7,970.75/x
  3. Step 3: Cross multiply
    11,664.35x = 17,490.10 × 7,970.75
  4. Step 4: Simplify right side
    11,664.35x = 139,409,214.58
  5. Step 5: Solve for x
    x = 139,409,214.58/11,664.35
  6. Step 6: Final answer
    x = 11,951.73

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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.