Home / 13,175.22-18,181.68-7,206.93

Finding the Fourth Proportional to 13,175.22, 18,181.68 and 7,206.93

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Solution

The fourth proportional to 13,175.22, 18,181.68 and 7,206.93 is: 9,945.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.22 : 18,181.68 = 7,206.93 : x
  2. Step 2: Convert to fraction form
    13,175.22/18,181.68 = 7,206.93/x
  3. Step 3: Cross multiply
    13,175.22x = 18,181.68 × 7,206.93
  4. Step 4: Simplify right side
    13,175.22x = 131,034,095.04
  5. Step 5: Solve for x
    x = 131,034,095.04/13,175.22
  6. Step 6: Final answer
    x = 9,945.50

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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.