Home / 15,988.62-23,979.60-4,299.06

Finding the Fourth Proportional to 15,988.62, 23,979.60 and 4,299.06

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Solution

The fourth proportional to 15,988.62, 23,979.60 and 4,299.06 is: 6,447.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.62 : 23,979.60 = 4,299.06 : x
  2. Step 2: Convert to fraction form
    15,988.62/23,979.60 = 4,299.06/x
  3. Step 3: Cross multiply
    15,988.62x = 23,979.60 × 4,299.06
  4. Step 4: Simplify right side
    15,988.62x = 103,089,739.18
  5. Step 5: Solve for x
    x = 103,089,739.18/15,988.62
  6. Step 6: Final answer
    x = 6,447.69

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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.