Home / 19,854.41-27,393.93-11,890.98

Finding the Fourth Proportional to 19,854.41, 27,393.93 and 11,890.98

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Solution

The fourth proportional to 19,854.41, 27,393.93 and 11,890.98 is: 16,406.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,854.41 : 27,393.93 = 11,890.98 : x
  2. Step 2: Convert to fraction form
    19,854.41/27,393.93 = 11,890.98/x
  3. Step 3: Cross multiply
    19,854.41x = 27,393.93 × 11,890.98
  4. Step 4: Simplify right side
    19,854.41x = 325,740,673.75
  5. Step 5: Solve for x
    x = 325,740,673.75/19,854.41
  6. Step 6: Final answer
    x = 16,406.47

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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.