Home / 18,374.44-25,291.38-15,357.16

Finding the Fourth Proportional to 18,374.44, 25,291.38 and 15,357.16

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Solution

The fourth proportional to 18,374.44, 25,291.38 and 15,357.16 is: 21,138.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374.44 : 25,291.38 = 15,357.16 : x
  2. Step 2: Convert to fraction form
    18,374.44/25,291.38 = 15,357.16/x
  3. Step 3: Cross multiply
    18,374.44x = 25,291.38 × 15,357.16
  4. Step 4: Simplify right side
    18,374.44x = 388,403,769.28
  5. Step 5: Solve for x
    x = 388,403,769.28/18,374.44
  6. Step 6: Final answer
    x = 21,138.26

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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.