Home / 8,948.14-13,421.80-3,105.21

Finding the Fourth Proportional to 8,948.14, 13,421.80 and 3,105.21

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Solution

The fourth proportional to 8,948.14, 13,421.80 and 3,105.21 is: 4,657.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.14 : 13,421.80 = 3,105.21 : x
  2. Step 2: Convert to fraction form
    8,948.14/13,421.80 = 3,105.21/x
  3. Step 3: Cross multiply
    8,948.14x = 13,421.80 × 3,105.21
  4. Step 4: Simplify right side
    8,948.14x = 41,677,507.58
  5. Step 5: Solve for x
    x = 41,677,507.58/8,948.14
  6. Step 6: Final answer
    x = 4,657.67

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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.