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Finding the Fourth Proportional to 8,915.69, 13,373.60 and 2,341.86

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Solution

The fourth proportional to 8,915.69, 13,373.60 and 2,341.86 is: 3,512.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.69 : 13,373.60 = 2,341.86 : x
  2. Step 2: Convert to fraction form
    8,915.69/13,373.60 = 2,341.86/x
  3. Step 3: Cross multiply
    8,915.69x = 13,373.60 × 2,341.86
  4. Step 4: Simplify right side
    8,915.69x = 31,319,087.19
  5. Step 5: Solve for x
    x = 31,319,087.19/8,915.69
  6. Step 6: Final answer
    x = 3,512.81

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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.