Home / 13,072.90-18,040.62-7,104.64

Finding the Fourth Proportional to 13,072.90, 18,040.62 and 7,104.64

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Solution

The fourth proportional to 13,072.90, 18,040.62 and 7,104.64 is: 9,804.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.90 : 18,040.62 = 7,104.64 : x
  2. Step 2: Convert to fraction form
    13,072.90/18,040.62 = 7,104.64/x
  3. Step 3: Cross multiply
    13,072.90x = 18,040.62 × 7,104.64
  4. Step 4: Simplify right side
    13,072.90x = 128,172,110.48
  5. Step 5: Solve for x
    x = 128,172,110.48/13,072.90
  6. Step 6: Final answer
    x = 9,804.41

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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.