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Finding the Fourth Proportional to 9,252.64, 12,770.64 and 5,274.40

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Solution

The fourth proportional to 9,252.64, 12,770.64 and 5,274.40 is: 7,279.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,252.64 : 12,770.64 = 5,274.40 : x
  2. Step 2: Convert to fraction form
    9,252.64/12,770.64 = 5,274.40/x
  3. Step 3: Cross multiply
    9,252.64x = 12,770.64 × 5,274.40
  4. Step 4: Simplify right side
    9,252.64x = 67,357,463.62
  5. Step 5: Solve for x
    x = 67,357,463.62/9,252.64
  6. Step 6: Final answer
    x = 7,279.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.