Home / 15,379.94-21,222.06-8,664.24

Finding the Fourth Proportional to 15,379.94, 21,222.06 and 8,664.24

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Solution

The fourth proportional to 15,379.94, 21,222.06 and 8,664.24 is: 11,955.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,379.94 : 21,222.06 = 8,664.24 : x
  2. Step 2: Convert to fraction form
    15,379.94/21,222.06 = 8,664.24/x
  3. Step 3: Cross multiply
    15,379.94x = 21,222.06 × 8,664.24
  4. Step 4: Simplify right side
    15,379.94x = 183,873,021.13
  5. Step 5: Solve for x
    x = 183,873,021.13/15,379.94
  6. Step 6: Final answer
    x = 11,955.38

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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.