Home / 7,992.72-11,029.32-4,407.12

Finding the Fourth Proportional to 7,992.72, 11,029.32 and 4,407.12

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Solution

The fourth proportional to 7,992.72, 11,029.32 and 4,407.12 is: 6,081.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.72 : 11,029.32 = 4,407.12 : x
  2. Step 2: Convert to fraction form
    7,992.72/11,029.32 = 4,407.12/x
  3. Step 3: Cross multiply
    7,992.72x = 11,029.32 × 4,407.12
  4. Step 4: Simplify right side
    7,992.72x = 48,607,536.76
  5. Step 5: Solve for x
    x = 48,607,536.76/7,992.72
  6. Step 6: Final answer
    x = 6,081.48

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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.