Home / 9,669.37-13,344.66-5,421.15

Finding the Fourth Proportional to 9,669.37, 13,344.66 and 5,421.15

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Solution

The fourth proportional to 9,669.37, 13,344.66 and 5,421.15 is: 7,481.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,669.37 : 13,344.66 = 5,421.15 : x
  2. Step 2: Convert to fraction form
    9,669.37/13,344.66 = 5,421.15/x
  3. Step 3: Cross multiply
    9,669.37x = 13,344.66 × 5,421.15
  4. Step 4: Simplify right side
    9,669.37x = 72,343,403.56
  5. Step 5: Solve for x
    x = 72,343,403.56/9,669.37
  6. Step 6: Final answer
    x = 7,481.71

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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.