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Finding the Fourth Proportional to 9,148.60, 13,694.10 and 8,860.60

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Solution

The fourth proportional to 9,148.60, 13,694.10 and 8,860.60 is: 13,263.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.60 : 13,694.10 = 8,860.60 : x
  2. Step 2: Convert to fraction form
    9,148.60/13,694.10 = 8,860.60/x
  3. Step 3: Cross multiply
    9,148.60x = 13,694.10 × 8,860.60
  4. Step 4: Simplify right side
    9,148.60x = 121,337,942.46
  5. Step 5: Solve for x
    x = 121,337,942.46/9,148.60
  6. Step 6: Final answer
    x = 13,263.01

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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.