Home / 9,431.08-13,013.86-5,453.44

Finding the Fourth Proportional to 9,431.08, 13,013.86 and 5,453.44

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Solution

The fourth proportional to 9,431.08, 13,013.86 and 5,453.44 is: 7,525.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.08 : 13,013.86 = 5,453.44 : x
  2. Step 2: Convert to fraction form
    9,431.08/13,013.86 = 5,453.44/x
  3. Step 3: Cross multiply
    9,431.08x = 13,013.86 × 5,453.44
  4. Step 4: Simplify right side
    9,431.08x = 70,970,304.68
  5. Step 5: Solve for x
    x = 70,970,304.68/9,431.08
  6. Step 6: Final answer
    x = 7,525.15

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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.