Home / 18,928.94-26,097.67-15,513.38

Finding the Fourth Proportional to 18,928.94, 26,097.67 and 15,513.38

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Solution

The fourth proportional to 18,928.94, 26,097.67 and 15,513.38 is: 21,388.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.94 : 26,097.67 = 15,513.38 : x
  2. Step 2: Convert to fraction form
    18,928.94/26,097.67 = 15,513.38/x
  3. Step 3: Cross multiply
    18,928.94x = 26,097.67 × 15,513.38
  4. Step 4: Simplify right side
    18,928.94x = 404,862,980.12
  5. Step 5: Solve for x
    x = 404,862,980.12/18,928.94
  6. Step 6: Final answer
    x = 21,388.57

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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.