Home / 11,472.47-15,825.33-7,216.79

Finding the Fourth Proportional to 11,472.47, 15,825.33 and 7,216.79

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Solution

The fourth proportional to 11,472.47, 15,825.33 and 7,216.79 is: 9,954.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,472.47 : 15,825.33 = 7,216.79 : x
  2. Step 2: Convert to fraction form
    11,472.47/15,825.33 = 7,216.79/x
  3. Step 3: Cross multiply
    11,472.47x = 15,825.33 × 7,216.79
  4. Step 4: Simplify right side
    11,472.47x = 114,208,083.29
  5. Step 5: Solve for x
    x = 114,208,083.29/11,472.47
  6. Step 6: Final answer
    x = 9,954.97

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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.