Home / 15,653.97-21,601.80-9,369.81

Finding the Fourth Proportional to 15,653.97, 21,601.80 and 9,369.81

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Solution

The fourth proportional to 15,653.97, 21,601.80 and 9,369.81 is: 12,929.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,653.97 : 21,601.80 = 9,369.81 : x
  2. Step 2: Convert to fraction form
    15,653.97/21,601.80 = 9,369.81/x
  3. Step 3: Cross multiply
    15,653.97x = 21,601.80 × 9,369.81
  4. Step 4: Simplify right side
    15,653.97x = 202,404,761.66
  5. Step 5: Solve for x
    x = 202,404,761.66/15,653.97
  6. Step 6: Final answer
    x = 12,929.93

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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.