Home / 12,825.33-17,698.87-7,159.75

Finding the Fourth Proportional to 12,825.33, 17,698.87 and 7,159.75

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Solution

The fourth proportional to 12,825.33, 17,698.87 and 7,159.75 is: 9,880.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,825.33 : 17,698.87 = 7,159.75 : x
  2. Step 2: Convert to fraction form
    12,825.33/17,698.87 = 7,159.75/x
  3. Step 3: Cross multiply
    12,825.33x = 17,698.87 × 7,159.75
  4. Step 4: Simplify right side
    12,825.33x = 126,719,484.48
  5. Step 5: Solve for x
    x = 126,719,484.48/12,825.33
  6. Step 6: Final answer
    x = 9,880.41

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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.