Home / 13,034.23-17,986.80-7,725.90

Finding the Fourth Proportional to 13,034.23, 17,986.80 and 7,725.90

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Solution

The fourth proportional to 13,034.23, 17,986.80 and 7,725.90 is: 10,661.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,034.23 : 17,986.80 = 7,725.90 : x
  2. Step 2: Convert to fraction form
    13,034.23/17,986.80 = 7,725.90/x
  3. Step 3: Cross multiply
    13,034.23x = 17,986.80 × 7,725.90
  4. Step 4: Simplify right side
    13,034.23x = 138,964,128.19
  5. Step 5: Solve for x
    x = 138,964,128.19/13,034.23
  6. Step 6: Final answer
    x = 10,661.48

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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.