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Finding the Fourth Proportional to 12,591, 17,368.02 and 8,346.60

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Solution

The fourth proportional to 12,591, 17,368.02 and 8,346.60 is: 11,513.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591 : 17,368.02 = 8,346.60 : x
  2. Step 2: Convert to fraction form
    12,591/17,368.02 = 8,346.60/x
  3. Step 3: Cross multiply
    12,591x = 17,368.02 × 8,346.60
  4. Step 4: Simplify right side
    12,591x = 144,963,915.73
  5. Step 5: Solve for x
    x = 144,963,915.73/12,591
  6. Step 6: Final answer
    x = 11,513.30

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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.