Home / 8,385.58-12,581.83-4,223.35

Finding the Fourth Proportional to 8,385.58, 12,581.83 and 4,223.35

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Solution

The fourth proportional to 8,385.58, 12,581.83 and 4,223.35 is: 6,336.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.58 : 12,581.83 = 4,223.35 : x
  2. Step 2: Convert to fraction form
    8,385.58/12,581.83 = 4,223.35/x
  3. Step 3: Cross multiply
    8,385.58x = 12,581.83 × 4,223.35
  4. Step 4: Simplify right side
    8,385.58x = 53,137,398.26
  5. Step 5: Solve for x
    x = 53,137,398.26/8,385.58
  6. Step 6: Final answer
    x = 6,336.76

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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.