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Finding the Fourth Proportional to 12,625, 17,422.50 and 7,036.36

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Solution

The fourth proportional to 12,625, 17,422.50 and 7,036.36 is: 9,710.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625 : 17,422.50 = 7,036.36 : x
  2. Step 2: Convert to fraction form
    12,625/17,422.50 = 7,036.36/x
  3. Step 3: Cross multiply
    12,625x = 17,422.50 × 7,036.36
  4. Step 4: Simplify right side
    12,625x = 122,590,982.10
  5. Step 5: Solve for x
    x = 122,590,982.10/12,625
  6. Step 6: Final answer
    x = 9,710.18

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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.