Home / 19,869.54-29,789.26-9,878.37

Finding the Fourth Proportional to 19,869.54, 29,789.26 and 9,878.37

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Solution

The fourth proportional to 19,869.54, 29,789.26 and 9,878.37 is: 14,810.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.54 : 29,789.26 = 9,878.37 : x
  2. Step 2: Convert to fraction form
    19,869.54/29,789.26 = 9,878.37/x
  3. Step 3: Cross multiply
    19,869.54x = 29,789.26 × 9,878.37
  4. Step 4: Simplify right side
    19,869.54x = 294,269,332.31
  5. Step 5: Solve for x
    x = 294,269,332.31/19,869.54
  6. Step 6: Final answer
    x = 14,810.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.