Home / 18,837.90-25,979.40-14,069.39

Finding the Fourth Proportional to 18,837.90, 25,979.40 and 14,069.39

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Solution

The fourth proportional to 18,837.90, 25,979.40 and 14,069.39 is: 19,403.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.90 : 25,979.40 = 14,069.39 : x
  2. Step 2: Convert to fraction form
    18,837.90/25,979.40 = 14,069.39/x
  3. Step 3: Cross multiply
    18,837.90x = 25,979.40 × 14,069.39
  4. Step 4: Simplify right side
    18,837.90x = 365,514,375.51
  5. Step 5: Solve for x
    x = 365,514,375.51/18,837.90
  6. Step 6: Final answer
    x = 19,403.14

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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.