Home / 8,434.40-12,638.21-5,650.83

Finding the Fourth Proportional to 8,434.40, 12,638.21 and 5,650.83

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Solution

The fourth proportional to 8,434.40, 12,638.21 and 5,650.83 is: 8,467.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434.40 : 12,638.21 = 5,650.83 : x
  2. Step 2: Convert to fraction form
    8,434.40/12,638.21 = 5,650.83/x
  3. Step 3: Cross multiply
    8,434.40x = 12,638.21 × 5,650.83
  4. Step 4: Simplify right side
    8,434.40x = 71,416,347.96
  5. Step 5: Solve for x
    x = 71,416,347.96/8,434.40
  6. Step 6: Final answer
    x = 8,467.28

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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.