Home / 13,884.78-19,141.07-9,898.97

Finding the Fourth Proportional to 13,884.78, 19,141.07 and 9,898.97

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Solution

The fourth proportional to 13,884.78, 19,141.07 and 9,898.97 is: 13,646.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.78 : 19,141.07 = 9,898.97 : x
  2. Step 2: Convert to fraction form
    13,884.78/19,141.07 = 9,898.97/x
  3. Step 3: Cross multiply
    13,884.78x = 19,141.07 × 9,898.97
  4. Step 4: Simplify right side
    13,884.78x = 189,476,877.70
  5. Step 5: Solve for x
    x = 189,476,877.70/13,884.78
  6. Step 6: Final answer
    x = 13,646.37

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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.