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Finding the Fourth Proportional to 8,484.84, 12,719.58 and 3,011.56

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Solution

The fourth proportional to 8,484.84, 12,719.58 and 3,011.56 is: 4,514.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484.84 : 12,719.58 = 3,011.56 : x
  2. Step 2: Convert to fraction form
    8,484.84/12,719.58 = 3,011.56/x
  3. Step 3: Cross multiply
    8,484.84x = 12,719.58 × 3,011.56
  4. Step 4: Simplify right side
    8,484.84x = 38,305,778.34
  5. Step 5: Solve for x
    x = 38,305,778.34/8,484.84
  6. Step 6: Final answer
    x = 4,514.61

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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.