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Finding the Fourth Proportional to 9,306.80, 13,046.80 and 9,306.80

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Solution

The fourth proportional to 9,306.80, 13,046.80 and 9,306.80 is: 13,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,306.80 : 13,046.80 = 9,306.80 : x
  2. Step 2: Convert to fraction form
    9,306.80/13,046.80 = 9,306.80/x
  3. Step 3: Cross multiply
    9,306.80x = 13,046.80 × 9,306.80
  4. Step 4: Simplify right side
    9,306.80x = 121,423,958.24
  5. Step 5: Solve for x
    x = 121,423,958.24/9,306.80
  6. Step 6: Final answer
    x = 13,046.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.