Home / 12,669.09-17,489.57-7,955.97

Finding the Fourth Proportional to 12,669.09, 17,489.57 and 7,955.97

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Solution

The fourth proportional to 12,669.09, 17,489.57 and 7,955.97 is: 10,983.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.09 : 17,489.57 = 7,955.97 : x
  2. Step 2: Convert to fraction form
    12,669.09/17,489.57 = 7,955.97/x
  3. Step 3: Cross multiply
    12,669.09x = 17,489.57 × 7,955.97
  4. Step 4: Simplify right side
    12,669.09x = 139,146,426.67
  5. Step 5: Solve for x
    x = 139,146,426.67/12,669.09
  6. Step 6: Final answer
    x = 10,983.15

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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.