Home / 19,776.86-27,299.94-12,973.48

Finding the Fourth Proportional to 19,776.86, 27,299.94 and 12,973.48

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Solution

The fourth proportional to 19,776.86, 27,299.94 and 12,973.48 is: 17,908.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,776.86 : 27,299.94 = 12,973.48 : x
  2. Step 2: Convert to fraction form
    19,776.86/27,299.94 = 12,973.48/x
  3. Step 3: Cross multiply
    19,776.86x = 27,299.94 × 12,973.48
  4. Step 4: Simplify right side
    19,776.86x = 354,175,089.09
  5. Step 5: Solve for x
    x = 354,175,089.09/19,776.86
  6. Step 6: Final answer
    x = 17,908.56

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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.