Home / 18,443.55-25,454.39-11,271.99

Finding the Fourth Proportional to 18,443.55, 25,454.39 and 11,271.99

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Solution

The fourth proportional to 18,443.55, 25,454.39 and 11,271.99 is: 15,556.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.55 : 25,454.39 = 11,271.99 : x
  2. Step 2: Convert to fraction form
    18,443.55/25,454.39 = 11,271.99/x
  3. Step 3: Cross multiply
    18,443.55x = 25,454.39 × 11,271.99
  4. Step 4: Simplify right side
    18,443.55x = 286,921,573.18
  5. Step 5: Solve for x
    x = 286,921,573.18/18,443.55
  6. Step 6: Final answer
    x = 15,556.74

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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.