Home / 12,476.13-17,217.09-7,170.60

Finding the Fourth Proportional to 12,476.13, 17,217.09 and 7,170.60

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Solution

The fourth proportional to 12,476.13, 17,217.09 and 7,170.60 is: 9,895.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.13 : 17,217.09 = 7,170.60 : x
  2. Step 2: Convert to fraction form
    12,476.13/17,217.09 = 7,170.60/x
  3. Step 3: Cross multiply
    12,476.13x = 17,217.09 × 7,170.60
  4. Step 4: Simplify right side
    12,476.13x = 123,456,865.55
  5. Step 5: Solve for x
    x = 123,456,865.55/12,476.13
  6. Step 6: Final answer
    x = 9,895.45

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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.