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Finding the Fourth Proportional to 12,607.14, 17,397.90 and 6,942.45

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Solution

The fourth proportional to 12,607.14, 17,397.90 and 6,942.45 is: 9,580.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.14 : 17,397.90 = 6,942.45 : x
  2. Step 2: Convert to fraction form
    12,607.14/17,397.90 = 6,942.45/x
  3. Step 3: Cross multiply
    12,607.14x = 17,397.90 × 6,942.45
  4. Step 4: Simplify right side
    12,607.14x = 120,784,050.86
  5. Step 5: Solve for x
    x = 120,784,050.86/12,607.14
  6. Step 6: Final answer
    x = 9,580.61

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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.