Home / 12,968.92-17,898.30-10,138.84

Finding the Fourth Proportional to 12,968.92, 17,898.30 and 10,138.84

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Solution

The fourth proportional to 12,968.92, 17,898.30 and 10,138.84 is: 13,992.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.92 : 17,898.30 = 10,138.84 : x
  2. Step 2: Convert to fraction form
    12,968.92/17,898.30 = 10,138.84/x
  3. Step 3: Cross multiply
    12,968.92x = 17,898.30 × 10,138.84
  4. Step 4: Simplify right side
    12,968.92x = 181,467,999.97
  5. Step 5: Solve for x
    x = 181,467,999.97/12,968.92
  6. Step 6: Final answer
    x = 13,992.53

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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.