Home / 8,433.30-12,657.69-4,276.20

Finding the Fourth Proportional to 8,433.30, 12,657.69 and 4,276.20

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Solution

The fourth proportional to 8,433.30, 12,657.69 and 4,276.20 is: 6,418.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,433.30 : 12,657.69 = 4,276.20 : x
  2. Step 2: Convert to fraction form
    8,433.30/12,657.69 = 4,276.20/x
  3. Step 3: Cross multiply
    8,433.30x = 12,657.69 × 4,276.20
  4. Step 4: Simplify right side
    8,433.30x = 54,126,813.98
  5. Step 5: Solve for x
    x = 54,126,813.98/8,433.30
  6. Step 6: Final answer
    x = 6,418.22

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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.