Home / 9,616.40-13,270.48-5,424.56

Finding the Fourth Proportional to 9,616.40, 13,270.48 and 5,424.56

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Solution

The fourth proportional to 9,616.40, 13,270.48 and 5,424.56 is: 7,485.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,616.40 : 13,270.48 = 5,424.56 : x
  2. Step 2: Convert to fraction form
    9,616.40/13,270.48 = 5,424.56/x
  3. Step 3: Cross multiply
    9,616.40x = 13,270.48 × 5,424.56
  4. Step 4: Simplify right side
    9,616.40x = 71,986,514.99
  5. Step 5: Solve for x
    x = 71,986,514.99/9,616.40
  6. Step 6: Final answer
    x = 7,485.81

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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.