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Finding the Fourth Proportional to 9,242.84, 13,845.90 and 8,486.84

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Solution

The fourth proportional to 9,242.84, 13,845.90 and 8,486.84 is: 12,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,242.84 : 13,845.90 = 8,486.84 : x
  2. Step 2: Convert to fraction form
    9,242.84/13,845.90 = 8,486.84/x
  3. Step 3: Cross multiply
    9,242.84x = 13,845.90 × 8,486.84
  4. Step 4: Simplify right side
    9,242.84x = 117,507,937.96
  5. Step 5: Solve for x
    x = 117,507,937.96/9,242.84
  6. Step 6: Final answer
    x = 12,713.40

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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.