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Finding the Fourth Proportional to 9,483.78, 14,226.76 and 3,936.40

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Solution

The fourth proportional to 9,483.78, 14,226.76 and 3,936.40 is: 5,905.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,483.78 : 14,226.76 = 3,936.40 : x
  2. Step 2: Convert to fraction form
    9,483.78/14,226.76 = 3,936.40/x
  3. Step 3: Cross multiply
    9,483.78x = 14,226.76 × 3,936.40
  4. Step 4: Simplify right side
    9,483.78x = 56,002,218.06
  5. Step 5: Solve for x
    x = 56,002,218.06/9,483.78
  6. Step 6: Final answer
    x = 5,905.05

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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.