Home / 13,040.45-17,995.78-7,072.10

Finding the Fourth Proportional to 13,040.45, 17,995.78 and 7,072.10

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Solution

The fourth proportional to 13,040.45, 17,995.78 and 7,072.10 is: 9,759.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.45 : 17,995.78 = 7,072.10 : x
  2. Step 2: Convert to fraction form
    13,040.45/17,995.78 = 7,072.10/x
  3. Step 3: Cross multiply
    13,040.45x = 17,995.78 × 7,072.10
  4. Step 4: Simplify right side
    13,040.45x = 127,267,955.74
  5. Step 5: Solve for x
    x = 127,267,955.74/13,040.45
  6. Step 6: Final answer
    x = 9,759.48

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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.