Home / 15,986.28-23,977.80-4,299.60

Finding the Fourth Proportional to 15,986.28, 23,977.80 and 4,299.60

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Solution

The fourth proportional to 15,986.28, 23,977.80 and 4,299.60 is: 6,448.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.28 : 23,977.80 = 4,299.60 : x
  2. Step 2: Convert to fraction form
    15,986.28/23,977.80 = 4,299.60/x
  3. Step 3: Cross multiply
    15,986.28x = 23,977.80 × 4,299.60
  4. Step 4: Simplify right side
    15,986.28x = 103,094,948.88
  5. Step 5: Solve for x
    x = 103,094,948.88/15,986.28
  6. Step 6: Final answer
    x = 6,448.96

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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.