Home / 13,173.09-18,178.89-7,204.74

Finding the Fourth Proportional to 13,173.09, 18,178.89 and 7,204.74

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Solution

The fourth proportional to 13,173.09, 18,178.89 and 7,204.74 is: 9,942.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.09 : 18,178.89 = 7,204.74 : x
  2. Step 2: Convert to fraction form
    13,173.09/18,178.89 = 7,204.74/x
  3. Step 3: Cross multiply
    13,173.09x = 18,178.89 × 7,204.74
  4. Step 4: Simplify right side
    13,173.09x = 130,974,175.94
  5. Step 5: Solve for x
    x = 130,974,175.94/13,173.09
  6. Step 6: Final answer
    x = 9,942.56

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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.