Home / 12,474.42-17,215.73-7,170.95

Finding the Fourth Proportional to 12,474.42, 17,215.73 and 7,170.95

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Solution

The fourth proportional to 12,474.42, 17,215.73 and 7,170.95 is: 9,896.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.42 : 17,215.73 = 7,170.95 : x
  2. Step 2: Convert to fraction form
    12,474.42/17,215.73 = 7,170.95/x
  3. Step 3: Cross multiply
    12,474.42x = 17,215.73 × 7,170.95
  4. Step 4: Simplify right side
    12,474.42x = 123,453,017.11
  5. Step 5: Solve for x
    x = 123,453,017.11/12,474.42
  6. Step 6: Final answer
    x = 9,896.49

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Double scale
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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.