Home / 12,504.89-17,257.04-7,127.21

Finding the Fourth Proportional to 12,504.89, 17,257.04 and 7,127.21

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Solution

The fourth proportional to 12,504.89, 17,257.04 and 7,127.21 is: 9,835.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504.89 : 17,257.04 = 7,127.21 : x
  2. Step 2: Convert to fraction form
    12,504.89/17,257.04 = 7,127.21/x
  3. Step 3: Cross multiply
    12,504.89x = 17,257.04 × 7,127.21
  4. Step 4: Simplify right side
    12,504.89x = 122,994,548.06
  5. Step 5: Solve for x
    x = 122,994,548.06/12,504.89
  6. Step 6: Final answer
    x = 9,835.72

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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.