Home / 12,279.02-16,945.08-6,975.59

Finding the Fourth Proportional to 12,279.02, 16,945.08 and 6,975.59

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Solution

The fourth proportional to 12,279.02, 16,945.08 and 6,975.59 is: 9,626.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.02 : 16,945.08 = 6,975.59 : x
  2. Step 2: Convert to fraction form
    12,279.02/16,945.08 = 6,975.59/x
  3. Step 3: Cross multiply
    12,279.02x = 16,945.08 × 6,975.59
  4. Step 4: Simplify right side
    12,279.02x = 118,201,930.60
  5. Step 5: Solve for x
    x = 118,201,930.60/12,279.02
  6. Step 6: Final answer
    x = 9,626.33

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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.