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Finding the Fourth Proportional to 8,259.84, 12,389.58 and 2,103.84

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Solution

The fourth proportional to 8,259.84, 12,389.58 and 2,103.84 is: 3,155.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,259.84 : 12,389.58 = 2,103.84 : x
  2. Step 2: Convert to fraction form
    8,259.84/12,389.58 = 2,103.84/x
  3. Step 3: Cross multiply
    8,259.84x = 12,389.58 × 2,103.84
  4. Step 4: Simplify right side
    8,259.84x = 26,065,693.99
  5. Step 5: Solve for x
    x = 26,065,693.99/8,259.84
  6. Step 6: Final answer
    x = 3,155.71

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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.