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Finding the Fourth Proportional to 12,454.08, 17,186.64 and 6,865.04

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Solution

The fourth proportional to 12,454.08, 17,186.64 and 6,865.04 is: 9,473.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454.08 : 17,186.64 = 6,865.04 : x
  2. Step 2: Convert to fraction form
    12,454.08/17,186.64 = 6,865.04/x
  3. Step 3: Cross multiply
    12,454.08x = 17,186.64 × 6,865.04
  4. Step 4: Simplify right side
    12,454.08x = 117,986,971.07
  5. Step 5: Solve for x
    x = 117,986,971.07/12,454.08
  6. Step 6: Final answer
    x = 9,473.76

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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.