Home / 9,900.06-13,662.08-5,424.09

Finding the Fourth Proportional to 9,900.06, 13,662.08 and 5,424.09

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Solution

The fourth proportional to 9,900.06, 13,662.08 and 5,424.09 is: 7,485.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,900.06 : 13,662.08 = 5,424.09 : x
  2. Step 2: Convert to fraction form
    9,900.06/13,662.08 = 5,424.09/x
  3. Step 3: Cross multiply
    9,900.06x = 13,662.08 × 5,424.09
  4. Step 4: Simplify right side
    9,900.06x = 74,104,324.39
  5. Step 5: Solve for x
    x = 74,104,324.39/9,900.06
  6. Step 6: Final answer
    x = 7,485.24

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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.