Home / 13,175.72-18,182.82-7,207.32

Finding the Fourth Proportional to 13,175.72, 18,182.82 and 7,207.32

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Solution

The fourth proportional to 13,175.72, 18,182.82 and 7,207.32 is: 9,946.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.72 : 18,182.82 = 7,207.32 : x
  2. Step 2: Convert to fraction form
    13,175.72/18,182.82 = 7,207.32/x
  3. Step 3: Cross multiply
    13,175.72x = 18,182.82 × 7,207.32
  4. Step 4: Simplify right side
    13,175.72x = 131,049,402.24
  5. Step 5: Solve for x
    x = 131,049,402.24/13,175.72
  6. Step 6: Final answer
    x = 9,946.28

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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.