Home / 15,991.20-23,986.74-4,304.16

Finding the Fourth Proportional to 15,991.20, 23,986.74 and 4,304.16

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Solution

The fourth proportional to 15,991.20, 23,986.74 and 4,304.16 is: 6,456.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.20 : 23,986.74 = 4,304.16 : x
  2. Step 2: Convert to fraction form
    15,991.20/23,986.74 = 4,304.16/x
  3. Step 3: Cross multiply
    15,991.20x = 23,986.74 × 4,304.16
  4. Step 4: Simplify right side
    15,991.20x = 103,242,766.84
  5. Step 5: Solve for x
    x = 103,242,766.84/15,991.20
  6. Step 6: Final answer
    x = 6,456.22

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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.