Home / 18,921.43-26,111.58-10,968.27

Finding the Fourth Proportional to 18,921.43, 26,111.58 and 10,968.27

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Solution

The fourth proportional to 18,921.43, 26,111.58 and 10,968.27 is: 15,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.43 : 26,111.58 = 10,968.27 : x
  2. Step 2: Convert to fraction form
    18,921.43/26,111.58 = 10,968.27/x
  3. Step 3: Cross multiply
    18,921.43x = 26,111.58 × 10,968.27
  4. Step 4: Simplify right side
    18,921.43x = 286,398,804.73
  5. Step 5: Solve for x
    x = 286,398,804.73/18,921.43
  6. Step 6: Final answer
    x = 15,136.21

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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.