Home / 12,823.76-17,698.92-7,236.56

Finding the Fourth Proportional to 12,823.76, 17,698.92 and 7,236.56

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Solution

The fourth proportional to 12,823.76, 17,698.92 and 7,236.56 is: 9,987.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,823.76 : 17,698.92 = 7,236.56 : x
  2. Step 2: Convert to fraction form
    12,823.76/17,698.92 = 7,236.56/x
  3. Step 3: Cross multiply
    12,823.76x = 17,698.92 × 7,236.56
  4. Step 4: Simplify right side
    12,823.76x = 128,079,296.52
  5. Step 5: Solve for x
    x = 128,079,296.52/12,823.76
  6. Step 6: Final answer
    x = 9,987.66

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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.