Home / 8,445.41-12,676.04-4,288.40

Finding the Fourth Proportional to 8,445.41, 12,676.04 and 4,288.40

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Solution

The fourth proportional to 8,445.41, 12,676.04 and 4,288.40 is: 6,436.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.41 : 12,676.04 = 4,288.40 : x
  2. Step 2: Convert to fraction form
    8,445.41/12,676.04 = 4,288.40/x
  3. Step 3: Cross multiply
    8,445.41x = 12,676.04 × 4,288.40
  4. Step 4: Simplify right side
    8,445.41x = 54,359,929.94
  5. Step 5: Solve for x
    x = 54,359,929.94/8,445.41
  6. Step 6: Final answer
    x = 6,436.62

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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.