Home / 9,897.44-13,658.09-5,421.22

Finding the Fourth Proportional to 9,897.44, 13,658.09 and 5,421.22

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Solution

The fourth proportional to 9,897.44, 13,658.09 and 5,421.22 is: 7,481.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,897.44 : 13,658.09 = 5,421.22 : x
  2. Step 2: Convert to fraction form
    9,897.44/13,658.09 = 5,421.22/x
  3. Step 3: Cross multiply
    9,897.44x = 13,658.09 × 5,421.22
  4. Step 4: Simplify right side
    9,897.44x = 74,043,449.42
  5. Step 5: Solve for x
    x = 74,043,449.42/9,897.44
  6. Step 6: Final answer
    x = 7,481.07

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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.