Home / 12,474.45-17,215.29-7,170.93

Finding the Fourth Proportional to 12,474.45, 17,215.29 and 7,170.93

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Solution

The fourth proportional to 12,474.45, 17,215.29 and 7,170.93 is: 9,896.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.45 : 17,215.29 = 7,170.93 : x
  2. Step 2: Convert to fraction form
    12,474.45/17,215.29 = 7,170.93/x
  3. Step 3: Cross multiply
    12,474.45x = 17,215.29 × 7,170.93
  4. Step 4: Simplify right side
    12,474.45x = 123,449,639.52
  5. Step 5: Solve for x
    x = 123,449,639.52/12,474.45
  6. Step 6: Final answer
    x = 9,896.20

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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.