Home / 13,186.35-18,196.92-7,217.91

Finding the Fourth Proportional to 13,186.35, 18,196.92 and 7,217.91

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Solution

The fourth proportional to 13,186.35, 18,196.92 and 7,217.91 is: 9,960.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.35 : 18,196.92 = 7,217.91 : x
  2. Step 2: Convert to fraction form
    13,186.35/18,196.92 = 7,217.91/x
  3. Step 3: Cross multiply
    13,186.35x = 18,196.92 × 7,217.91
  4. Step 4: Simplify right side
    13,186.35x = 131,343,730.84
  5. Step 5: Solve for x
    x = 131,343,730.84/13,186.35
  6. Step 6: Final answer
    x = 9,960.58

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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.