Home / 8,420.24-12,633.60-3,224.90

Finding the Fourth Proportional to 8,420.24, 12,633.60 and 3,224.90

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Solution

The fourth proportional to 8,420.24, 12,633.60 and 3,224.90 is: 4,838.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420.24 : 12,633.60 = 3,224.90 : x
  2. Step 2: Convert to fraction form
    8,420.24/12,633.60 = 3,224.90/x
  3. Step 3: Cross multiply
    8,420.24x = 12,633.60 × 3,224.90
  4. Step 4: Simplify right side
    8,420.24x = 40,742,033.47
  5. Step 5: Solve for x
    x = 40,742,033.47/8,420.24
  6. Step 6: Final answer
    x = 4,838.59

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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.