Home / 15,990.36-23,987.28-6,138

Finding the Fourth Proportional to 15,990.36, 23,987.28 and 6,138

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Solution

The fourth proportional to 15,990.36, 23,987.28 and 6,138 is: 9,207.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.36 : 23,987.28 = 6,138 : x
  2. Step 2: Convert to fraction form
    15,990.36/23,987.28 = 6,138/x
  3. Step 3: Cross multiply
    15,990.36x = 23,987.28 × 6,138
  4. Step 4: Simplify right side
    15,990.36x = 147,233,924.64
  5. Step 5: Solve for x
    x = 147,233,924.64/15,990.36
  6. Step 6: Final answer
    x = 9,207.67

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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.