Home / 9,240.91-13,855.80-3,897.72

Finding the Fourth Proportional to 9,240.91, 13,855.80 and 3,897.72

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Solution

The fourth proportional to 9,240.91, 13,855.80 and 3,897.72 is: 5,844.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,240.91 : 13,855.80 = 3,897.72 : x
  2. Step 2: Convert to fraction form
    9,240.91/13,855.80 = 3,897.72/x
  3. Step 3: Cross multiply
    9,240.91x = 13,855.80 × 3,897.72
  4. Step 4: Simplify right side
    9,240.91x = 54,005,940.01
  5. Step 5: Solve for x
    x = 54,005,940.01/9,240.91
  6. Step 6: Final answer
    x = 5,844.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.