Home / 12,829.06-17,704.05-7,240.02

Finding the Fourth Proportional to 12,829.06, 17,704.05 and 7,240.02

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Solution

The fourth proportional to 12,829.06, 17,704.05 and 7,240.02 is: 9,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,829.06 : 17,704.05 = 7,240.02 : x
  2. Step 2: Convert to fraction form
    12,829.06/17,704.05 = 7,240.02/x
  3. Step 3: Cross multiply
    12,829.06x = 17,704.05 × 7,240.02
  4. Step 4: Simplify right side
    12,829.06x = 128,177,676.08
  5. Step 5: Solve for x
    x = 128,177,676.08/12,829.06
  6. Step 6: Final answer
    x = 9,991.20

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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.