Home / 12,609.51-17,400.45-7,231.66

Finding the Fourth Proportional to 12,609.51, 17,400.45 and 7,231.66

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Solution

The fourth proportional to 12,609.51, 17,400.45 and 7,231.66 is: 9,979.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.51 : 17,400.45 = 7,231.66 : x
  2. Step 2: Convert to fraction form
    12,609.51/17,400.45 = 7,231.66/x
  3. Step 3: Cross multiply
    12,609.51x = 17,400.45 × 7,231.66
  4. Step 4: Simplify right side
    12,609.51x = 125,834,227.93
  5. Step 5: Solve for x
    x = 125,834,227.93/12,609.51
  6. Step 6: Final answer
    x = 9,979.31

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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.