Home / 18,826.55-25,981.46-11,271.42

Finding the Fourth Proportional to 18,826.55, 25,981.46 and 11,271.42

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Solution

The fourth proportional to 18,826.55, 25,981.46 and 11,271.42 is: 15,555.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.55 : 25,981.46 = 11,271.42 : x
  2. Step 2: Convert to fraction form
    18,826.55/25,981.46 = 11,271.42/x
  3. Step 3: Cross multiply
    18,826.55x = 25,981.46 × 11,271.42
  4. Step 4: Simplify right side
    18,826.55x = 292,847,947.87
  5. Step 5: Solve for x
    x = 292,847,947.87/18,826.55
  6. Step 6: Final answer
    x = 15,555.05

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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.