Home / 12,628.24-17,425.92-7,323.40

Finding the Fourth Proportional to 12,628.24, 17,425.92 and 7,323.40

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Solution

The fourth proportional to 12,628.24, 17,425.92 and 7,323.40 is: 10,105.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.24 : 17,425.92 = 7,323.40 : x
  2. Step 2: Convert to fraction form
    12,628.24/17,425.92 = 7,323.40/x
  3. Step 3: Cross multiply
    12,628.24x = 17,425.92 × 7,323.40
  4. Step 4: Simplify right side
    12,628.24x = 127,616,982.53
  5. Step 5: Solve for x
    x = 127,616,982.53/12,628.24
  6. Step 6: Final answer
    x = 10,105.68

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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.