Home / 11,513.72-17,272.20-5,670.38

Finding the Fourth Proportional to 11,513.72, 17,272.20 and 5,670.38

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Solution

The fourth proportional to 11,513.72, 17,272.20 and 5,670.38 is: 8,506.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.72 : 17,272.20 = 5,670.38 : x
  2. Step 2: Convert to fraction form
    11,513.72/17,272.20 = 5,670.38/x
  3. Step 3: Cross multiply
    11,513.72x = 17,272.20 × 5,670.38
  4. Step 4: Simplify right side
    11,513.72x = 97,939,937.44
  5. Step 5: Solve for x
    x = 97,939,937.44/11,513.72
  6. Step 6: Final answer
    x = 8,506.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.