Home / 12,548.70-17,324.71-7,839.36

Finding the Fourth Proportional to 12,548.70, 17,324.71 and 7,839.36

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Solution

The fourth proportional to 12,548.70, 17,324.71 and 7,839.36 is: 10,823.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.70 : 17,324.71 = 7,839.36 : x
  2. Step 2: Convert to fraction form
    12,548.70/17,324.71 = 7,839.36/x
  3. Step 3: Cross multiply
    12,548.70x = 17,324.71 × 7,839.36
  4. Step 4: Simplify right side
    12,548.70x = 135,814,638.59
  5. Step 5: Solve for x
    x = 135,814,638.59/12,548.70
  6. Step 6: Final answer
    x = 10,823.00

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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.