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Finding the Fourth Proportional to 9,318.88, 13,973.51 and 2,744.21

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Solution

The fourth proportional to 9,318.88, 13,973.51 and 2,744.21 is: 4,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.88 : 13,973.51 = 2,744.21 : x
  2. Step 2: Convert to fraction form
    9,318.88/13,973.51 = 2,744.21/x
  3. Step 3: Cross multiply
    9,318.88x = 13,973.51 × 2,744.21
  4. Step 4: Simplify right side
    9,318.88x = 38,346,287.67
  5. Step 5: Solve for x
    x = 38,346,287.67/9,318.88
  6. Step 6: Final answer
    x = 4,114.90

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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.