Home / 12,992.07-17,938.65-7,963.16

Finding the Fourth Proportional to 12,992.07, 17,938.65 and 7,963.16

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Solution

The fourth proportional to 12,992.07, 17,938.65 and 7,963.16 is: 10,995.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,992.07 : 17,938.65 = 7,963.16 : x
  2. Step 2: Convert to fraction form
    12,992.07/17,938.65 = 7,963.16/x
  3. Step 3: Cross multiply
    12,992.07x = 17,938.65 × 7,963.16
  4. Step 4: Simplify right side
    12,992.07x = 142,848,235.51
  5. Step 5: Solve for x
    x = 142,848,235.51/12,992.07
  6. Step 6: Final answer
    x = 10,995.03

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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.