Home / 18,442.80-25,453.35-11,271.24

Finding the Fourth Proportional to 18,442.80, 25,453.35 and 11,271.24

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Solution

The fourth proportional to 18,442.80, 25,453.35 and 11,271.24 is: 15,555.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442.80 : 25,453.35 = 11,271.24 : x
  2. Step 2: Convert to fraction form
    18,442.80/25,453.35 = 11,271.24/x
  3. Step 3: Cross multiply
    18,442.80x = 25,453.35 × 11,271.24
  4. Step 4: Simplify right side
    18,442.80x = 286,890,816.65
  5. Step 5: Solve for x
    x = 286,890,816.65/18,442.80
  6. Step 6: Final answer
    x = 15,555.71

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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.