Home / 13,623.69-18,797.36-7,955.22

Finding the Fourth Proportional to 13,623.69, 18,797.36 and 7,955.22

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Solution

The fourth proportional to 13,623.69, 18,797.36 and 7,955.22 is: 10,976.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.69 : 18,797.36 = 7,955.22 : x
  2. Step 2: Convert to fraction form
    13,623.69/18,797.36 = 7,955.22/x
  3. Step 3: Cross multiply
    13,623.69x = 18,797.36 × 7,955.22
  4. Step 4: Simplify right side
    13,623.69x = 149,537,094.44
  5. Step 5: Solve for x
    x = 149,537,094.44/13,623.69
  6. Step 6: Final answer
    x = 10,976.25

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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.