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Finding the Fourth Proportional to 12,515.68, 17,271.68 and 6,850.30

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Solution

The fourth proportional to 12,515.68, 17,271.68 and 6,850.30 is: 9,453.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.68 : 17,271.68 = 6,850.30 : x
  2. Step 2: Convert to fraction form
    12,515.68/17,271.68 = 6,850.30/x
  3. Step 3: Cross multiply
    12,515.68x = 17,271.68 × 6,850.30
  4. Step 4: Simplify right side
    12,515.68x = 118,316,189.50
  5. Step 5: Solve for x
    x = 118,316,189.50/12,515.68
  6. Step 6: Final answer
    x = 9,453.44

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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.