Home / 18,824.08-25,981.92-10,871.12

Finding the Fourth Proportional to 18,824.08, 25,981.92 and 10,871.12

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Solution

The fourth proportional to 18,824.08, 25,981.92 and 10,871.12 is: 15,004.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.08 : 25,981.92 = 10,871.12 : x
  2. Step 2: Convert to fraction form
    18,824.08/25,981.92 = 10,871.12/x
  3. Step 3: Cross multiply
    18,824.08x = 25,981.92 × 10,871.12
  4. Step 4: Simplify right side
    18,824.08x = 282,452,570.15
  5. Step 5: Solve for x
    x = 282,452,570.15/18,824.08
  6. Step 6: Final answer
    x = 15,004.85

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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.