Home / 12,979.48-17,893.02-9,247

Finding the Fourth Proportional to 12,979.48, 17,893.02 and 9,247

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Solution

The fourth proportional to 12,979.48, 17,893.02 and 9,247 is: 12,747.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979.48 : 17,893.02 = 9,247 : x
  2. Step 2: Convert to fraction form
    12,979.48/17,893.02 = 9,247/x
  3. Step 3: Cross multiply
    12,979.48x = 17,893.02 × 9,247
  4. Step 4: Simplify right side
    12,979.48x = 165,456,755.94
  5. Step 5: Solve for x
    x = 165,456,755.94/12,979.48
  6. Step 6: Final answer
    x = 12,747.56

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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.