Home / 18,836.20-25,986.78-10,875.52

Finding the Fourth Proportional to 18,836.20, 25,986.78 and 10,875.52

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Solution

The fourth proportional to 18,836.20, 25,986.78 and 10,875.52 is: 15,004.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,836.20 : 25,986.78 = 10,875.52 : x
  2. Step 2: Convert to fraction form
    18,836.20/25,986.78 = 10,875.52/x
  3. Step 3: Cross multiply
    18,836.20x = 25,986.78 × 10,875.52
  4. Step 4: Simplify right side
    18,836.20x = 282,619,745.63
  5. Step 5: Solve for x
    x = 282,619,745.63/18,836.20
  6. Step 6: Final answer
    x = 15,004.07

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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.