Home / 13,217.56-18,238.55-7,552.68

Finding the Fourth Proportional to 13,217.56, 18,238.55 and 7,552.68

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Solution

The fourth proportional to 13,217.56, 18,238.55 and 7,552.68 is: 10,421.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.56 : 18,238.55 = 7,552.68 : x
  2. Step 2: Convert to fraction form
    13,217.56/18,238.55 = 7,552.68/x
  3. Step 3: Cross multiply
    13,217.56x = 18,238.55 × 7,552.68
  4. Step 4: Simplify right side
    13,217.56x = 137,749,850.06
  5. Step 5: Solve for x
    x = 137,749,850.06/13,217.56
  6. Step 6: Final answer
    x = 10,421.73

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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.