Home / 8,665.46-12,996.76-3,117.77

Finding the Fourth Proportional to 8,665.46, 12,996.76 and 3,117.77

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Solution

The fourth proportional to 8,665.46, 12,996.76 and 3,117.77 is: 4,676.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.46 : 12,996.76 = 3,117.77 : x
  2. Step 2: Convert to fraction form
    8,665.46/12,996.76 = 3,117.77/x
  3. Step 3: Cross multiply
    8,665.46x = 12,996.76 × 3,117.77
  4. Step 4: Simplify right side
    8,665.46x = 40,520,908.43
  5. Step 5: Solve for x
    x = 40,520,908.43/8,665.46
  6. Step 6: Final answer
    x = 4,676.14

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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.