Home / 19,465.98-26,865.05-11,917.31

Finding the Fourth Proportional to 19,465.98, 26,865.05 and 11,917.31

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Solution

The fourth proportional to 19,465.98, 26,865.05 and 11,917.31 is: 16,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,465.98 : 26,865.05 = 11,917.31 : x
  2. Step 2: Convert to fraction form
    19,465.98/26,865.05 = 11,917.31/x
  3. Step 3: Cross multiply
    19,465.98x = 26,865.05 × 11,917.31
  4. Step 4: Simplify right side
    19,465.98x = 320,158,935.10
  5. Step 5: Solve for x
    x = 320,158,935.10/19,465.98
  6. Step 6: Final answer
    x = 16,447.10

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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.