Home / 19,481.53-26,863.37-12,398.89

Finding the Fourth Proportional to 19,481.53, 26,863.37 and 12,398.89

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Solution

The fourth proportional to 19,481.53, 26,863.37 and 12,398.89 is: 17,097.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,481.53 : 26,863.37 = 12,398.89 : x
  2. Step 2: Convert to fraction form
    19,481.53/26,863.37 = 12,398.89/x
  3. Step 3: Cross multiply
    19,481.53x = 26,863.37 × 12,398.89
  4. Step 4: Simplify right side
    19,481.53x = 333,075,969.66
  5. Step 5: Solve for x
    x = 333,075,969.66/19,481.53
  6. Step 6: Final answer
    x = 17,097.01

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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.