Home / 12,279.37-16,945.65-6,974.29

Finding the Fourth Proportional to 12,279.37, 16,945.65 and 6,974.29

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Solution

The fourth proportional to 12,279.37, 16,945.65 and 6,974.29 is: 9,624.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.37 : 16,945.65 = 6,974.29 : x
  2. Step 2: Convert to fraction form
    12,279.37/16,945.65 = 6,974.29/x
  3. Step 3: Cross multiply
    12,279.37x = 16,945.65 × 6,974.29
  4. Step 4: Simplify right side
    12,279.37x = 118,183,877.34
  5. Step 5: Solve for x
    x = 118,183,877.34/12,279.37
  6. Step 6: Final answer
    x = 9,624.59

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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.