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Finding the Fourth Proportional to 9,104.60, 12,759.40 and 9,104.60

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Solution

The fourth proportional to 9,104.60, 12,759.40 and 9,104.60 is: 12,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,104.60 : 12,759.40 = 9,104.60 : x
  2. Step 2: Convert to fraction form
    9,104.60/12,759.40 = 9,104.60/x
  3. Step 3: Cross multiply
    9,104.60x = 12,759.40 × 9,104.60
  4. Step 4: Simplify right side
    9,104.60x = 116,169,233.24
  5. Step 5: Solve for x
    x = 116,169,233.24/9,104.60
  6. Step 6: Final answer
    x = 12,759.40

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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.