Home / 12,731.99-19,086.44-6,881.77

Finding the Fourth Proportional to 12,731.99, 19,086.44 and 6,881.77

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Solution

The fourth proportional to 12,731.99, 19,086.44 and 6,881.77 is: 10,316.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.99 : 19,086.44 = 6,881.77 : x
  2. Step 2: Convert to fraction form
    12,731.99/19,086.44 = 6,881.77/x
  3. Step 3: Cross multiply
    12,731.99x = 19,086.44 × 6,881.77
  4. Step 4: Simplify right side
    12,731.99x = 131,348,394.77
  5. Step 5: Solve for x
    x = 131,348,394.77/12,731.99
  6. Step 6: Final answer
    x = 10,316.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.