Home / 13,181.14-18,189.06-7,516.80

Finding the Fourth Proportional to 13,181.14, 18,189.06 and 7,516.80

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Solution

The fourth proportional to 13,181.14, 18,189.06 and 7,516.80 is: 10,372.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.14 : 18,189.06 = 7,516.80 : x
  2. Step 2: Convert to fraction form
    13,181.14/18,189.06 = 7,516.80/x
  3. Step 3: Cross multiply
    13,181.14x = 18,189.06 × 7,516.80
  4. Step 4: Simplify right side
    13,181.14x = 136,723,526.21
  5. Step 5: Solve for x
    x = 136,723,526.21/13,181.14
  6. Step 6: Final answer
    x = 10,372.66

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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.