Home / 15,991.44-23,987.28-6,128.36

Finding the Fourth Proportional to 15,991.44, 23,987.28 and 6,128.36

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Solution

The fourth proportional to 15,991.44, 23,987.28 and 6,128.36 is: 9,192.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.44 : 23,987.28 = 6,128.36 : x
  2. Step 2: Convert to fraction form
    15,991.44/23,987.28 = 6,128.36/x
  3. Step 3: Cross multiply
    15,991.44x = 23,987.28 × 6,128.36
  4. Step 4: Simplify right side
    15,991.44x = 147,002,687.26
  5. Step 5: Solve for x
    x = 147,002,687.26/15,991.44
  6. Step 6: Final answer
    x = 9,192.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.