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Finding the Fourth Proportional to 9,770.40, 14,658.30 and 4,226.40

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Solution

The fourth proportional to 9,770.40, 14,658.30 and 4,226.40 is: 6,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,770.40 : 14,658.30 = 4,226.40 : x
  2. Step 2: Convert to fraction form
    9,770.40/14,658.30 = 4,226.40/x
  3. Step 3: Cross multiply
    9,770.40x = 14,658.30 × 4,226.40
  4. Step 4: Simplify right side
    9,770.40x = 61,951,839.12
  5. Step 5: Solve for x
    x = 61,951,839.12/9,770.40
  6. Step 6: Final answer
    x = 6,340.77

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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.