Home / 12,825.64-17,698.26-7,159.96

Finding the Fourth Proportional to 12,825.64, 17,698.26 and 7,159.96

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Solution

The fourth proportional to 12,825.64, 17,698.26 and 7,159.96 is: 9,880.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,825.64 : 17,698.26 = 7,159.96 : x
  2. Step 2: Convert to fraction form
    12,825.64/17,698.26 = 7,159.96/x
  3. Step 3: Cross multiply
    12,825.64x = 17,698.26 × 7,159.96
  4. Step 4: Simplify right side
    12,825.64x = 126,718,833.67
  5. Step 5: Solve for x
    x = 126,718,833.67/12,825.64
  6. Step 6: Final answer
    x = 9,880.12

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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.