Home / 8,358.72-12,530.56-3,168.24

Finding the Fourth Proportional to 8,358.72, 12,530.56 and 3,168.24

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Solution

The fourth proportional to 8,358.72, 12,530.56 and 3,168.24 is: 4,749.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.72 : 12,530.56 = 3,168.24 : x
  2. Step 2: Convert to fraction form
    8,358.72/12,530.56 = 3,168.24/x
  3. Step 3: Cross multiply
    8,358.72x = 12,530.56 × 3,168.24
  4. Step 4: Simplify right side
    8,358.72x = 39,699,821.41
  5. Step 5: Solve for x
    x = 39,699,821.41/8,358.72
  6. Step 6: Final answer
    x = 4,749.51

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1.5x scale

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.