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Finding the Fourth Proportional to 9,783.10, 14,629.29 and 9,290.62

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Solution

The fourth proportional to 9,783.10, 14,629.29 and 9,290.62 is: 13,892.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,783.10 : 14,629.29 = 9,290.62 : x
  2. Step 2: Convert to fraction form
    9,783.10/14,629.29 = 9,290.62/x
  3. Step 3: Cross multiply
    9,783.10x = 14,629.29 × 9,290.62
  4. Step 4: Simplify right side
    9,783.10x = 135,915,174.26
  5. Step 5: Solve for x
    x = 135,915,174.26/9,783.10
  6. Step 6: Final answer
    x = 13,892.85

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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.