Home / 8,430.60-12,647.27-3,166.03

Finding the Fourth Proportional to 8,430.60, 12,647.27 and 3,166.03

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Solution

The fourth proportional to 8,430.60, 12,647.27 and 3,166.03 is: 4,749.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.60 : 12,647.27 = 3,166.03 : x
  2. Step 2: Convert to fraction form
    8,430.60/12,647.27 = 3,166.03/x
  3. Step 3: Cross multiply
    8,430.60x = 12,647.27 × 3,166.03
  4. Step 4: Simplify right side
    8,430.60x = 40,041,636.24
  5. Step 5: Solve for x
    x = 40,041,636.24/8,430.60
  6. Step 6: Final answer
    x = 4,749.56

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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.