Home / 13,040.16-17,995.38-7,071.82

Finding the Fourth Proportional to 13,040.16, 17,995.38 and 7,071.82

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Solution

The fourth proportional to 13,040.16, 17,995.38 and 7,071.82 is: 9,759.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.16 : 17,995.38 = 7,071.82 : x
  2. Step 2: Convert to fraction form
    13,040.16/17,995.38 = 7,071.82/x
  3. Step 3: Cross multiply
    13,040.16x = 17,995.38 × 7,071.82
  4. Step 4: Simplify right side
    13,040.16x = 127,260,088.19
  5. Step 5: Solve for x
    x = 127,260,088.19/13,040.16
  6. Step 6: Final answer
    x = 9,759.09

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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.