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Finding the Fourth Proportional to 12,460.79, 17,195.88 and 6,871.79

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Solution

The fourth proportional to 12,460.79, 17,195.88 and 6,871.79 is: 9,483.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,460.79 : 17,195.88 = 6,871.79 : x
  2. Step 2: Convert to fraction form
    12,460.79/17,195.88 = 6,871.79/x
  3. Step 3: Cross multiply
    12,460.79x = 17,195.88 × 6,871.79
  4. Step 4: Simplify right side
    12,460.79x = 118,166,476.23
  5. Step 5: Solve for x
    x = 118,166,476.23/12,460.79
  6. Step 6: Final answer
    x = 9,483.06

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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.