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Finding the Fourth Proportional to 12,995.78, 17,934.06 and 7,027.39

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Solution

The fourth proportional to 12,995.78, 17,934.06 and 7,027.39 is: 9,697.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,995.78 : 17,934.06 = 7,027.39 : x
  2. Step 2: Convert to fraction form
    12,995.78/17,934.06 = 7,027.39/x
  3. Step 3: Cross multiply
    12,995.78x = 17,934.06 × 7,027.39
  4. Step 4: Simplify right side
    12,995.78x = 126,029,643.14
  5. Step 5: Solve for x
    x = 126,029,643.14/12,995.78
  6. Step 6: Final answer
    x = 9,697.74

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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.