Home / 18,871.02-26,039.94-10,912.04

Finding the Fourth Proportional to 18,871.02, 26,039.94 and 10,912.04

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Solution

The fourth proportional to 18,871.02, 26,039.94 and 10,912.04 is: 15,057.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871.02 : 26,039.94 = 10,912.04 : x
  2. Step 2: Convert to fraction form
    18,871.02/26,039.94 = 10,912.04/x
  3. Step 3: Cross multiply
    18,871.02x = 26,039.94 × 10,912.04
  4. Step 4: Simplify right side
    18,871.02x = 284,148,866.88
  5. Step 5: Solve for x
    x = 284,148,866.88/18,871.02
  6. Step 6: Final answer
    x = 15,057.42

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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.