Home / 8,283.20-12,432.84-3,903.68

Finding the Fourth Proportional to 8,283.20, 12,432.84 and 3,903.68

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Solution

The fourth proportional to 8,283.20, 12,432.84 and 3,903.68 is: 5,859.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,283.20 : 12,432.84 = 3,903.68 : x
  2. Step 2: Convert to fraction form
    8,283.20/12,432.84 = 3,903.68/x
  3. Step 3: Cross multiply
    8,283.20x = 12,432.84 × 3,903.68
  4. Step 4: Simplify right side
    8,283.20x = 48,533,828.85
  5. Step 5: Solve for x
    x = 48,533,828.85/8,283.20
  6. Step 6: Final answer
    x = 5,859.31

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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.