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Finding the Fourth Proportional to 8,289.84, 12,434.94 and 3,094.68

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Solution

The fourth proportional to 8,289.84, 12,434.94 and 3,094.68 is: 4,642.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.84 : 12,434.94 = 3,094.68 : x
  2. Step 2: Convert to fraction form
    8,289.84/12,434.94 = 3,094.68/x
  3. Step 3: Cross multiply
    8,289.84x = 12,434.94 × 3,094.68
  4. Step 4: Simplify right side
    8,289.84x = 38,482,160.12
  5. Step 5: Solve for x
    x = 38,482,160.12/8,289.84
  6. Step 6: Final answer
    x = 4,642.09

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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.