Home / 12,828.56-17,713.44-9,839.66

Finding the Fourth Proportional to 12,828.56, 17,713.44 and 9,839.66

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Solution

The fourth proportional to 12,828.56, 17,713.44 and 9,839.66 is: 13,586.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828.56 : 17,713.44 = 9,839.66 : x
  2. Step 2: Convert to fraction form
    12,828.56/17,713.44 = 9,839.66/x
  3. Step 3: Cross multiply
    12,828.56x = 17,713.44 × 9,839.66
  4. Step 4: Simplify right side
    12,828.56x = 174,294,138.46
  5. Step 5: Solve for x
    x = 174,294,138.46/12,828.56
  6. Step 6: Final answer
    x = 13,586.42

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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.