Home / 15,986.16-23,986.15-8,581.97

Finding the Fourth Proportional to 15,986.16, 23,986.15 and 8,581.97

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Solution

The fourth proportional to 15,986.16, 23,986.15 and 8,581.97 is: 12,876.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.16 : 23,986.15 = 8,581.97 : x
  2. Step 2: Convert to fraction form
    15,986.16/23,986.15 = 8,581.97/x
  3. Step 3: Cross multiply
    15,986.16x = 23,986.15 × 8,581.97
  4. Step 4: Simplify right side
    15,986.16x = 205,848,428.24
  5. Step 5: Solve for x
    x = 205,848,428.24/15,986.16
  6. Step 6: Final answer
    x = 12,876.67

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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.