Home / 10,205.80-15,308.78-2,810.67

Finding the Fourth Proportional to 10,205.80, 15,308.78 and 2,810.67

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Solution

The fourth proportional to 10,205.80, 15,308.78 and 2,810.67 is: 4,216.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,205.80 : 15,308.78 = 2,810.67 : x
  2. Step 2: Convert to fraction form
    10,205.80/15,308.78 = 2,810.67/x
  3. Step 3: Cross multiply
    10,205.80x = 15,308.78 × 2,810.67
  4. Step 4: Simplify right side
    10,205.80x = 43,027,928.68
  5. Step 5: Solve for x
    x = 43,027,928.68/10,205.80
  6. Step 6: Final answer
    x = 4,216.03

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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.