Home / 15,297.52-21,110.67-9,992.32

Finding the Fourth Proportional to 15,297.52, 21,110.67 and 9,992.32

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Solution

The fourth proportional to 15,297.52, 21,110.67 and 9,992.32 is: 13,789.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297.52 : 21,110.67 = 9,992.32 : x
  2. Step 2: Convert to fraction form
    15,297.52/21,110.67 = 9,992.32/x
  3. Step 3: Cross multiply
    15,297.52x = 21,110.67 × 9,992.32
  4. Step 4: Simplify right side
    15,297.52x = 210,944,570.05
  5. Step 5: Solve for x
    x = 210,944,570.05/15,297.52
  6. Step 6: Final answer
    x = 13,789.46

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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.