Home / 12,825.81-17,709.62-9,836.91

Finding the Fourth Proportional to 12,825.81, 17,709.62 and 9,836.91

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Solution

The fourth proportional to 12,825.81, 17,709.62 and 9,836.91 is: 13,582.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,825.81 : 17,709.62 = 9,836.91 : x
  2. Step 2: Convert to fraction form
    12,825.81/17,709.62 = 9,836.91/x
  3. Step 3: Cross multiply
    12,825.81x = 17,709.62 × 9,836.91
  4. Step 4: Simplify right side
    12,825.81x = 174,207,938.07
  5. Step 5: Solve for x
    x = 174,207,938.07/12,825.81
  6. Step 6: Final answer
    x = 13,582.61

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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.