Home / 12,829.07-17,699.96-7,162.90

Finding the Fourth Proportional to 12,829.07, 17,699.96 and 7,162.90

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Solution

The fourth proportional to 12,829.07, 17,699.96 and 7,162.90 is: 9,882.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,829.07 : 17,699.96 = 7,162.90 : x
  2. Step 2: Convert to fraction form
    12,829.07/17,699.96 = 7,162.90/x
  3. Step 3: Cross multiply
    12,829.07x = 17,699.96 × 7,162.90
  4. Step 4: Simplify right side
    12,829.07x = 126,782,919.17
  5. Step 5: Solve for x
    x = 126,782,919.17/12,829.07
  6. Step 6: Final answer
    x = 9,882.47

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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.