Home / 13,010.66-17,948.09-7,904.81

Finding the Fourth Proportional to 13,010.66, 17,948.09 and 7,904.81

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Solution

The fourth proportional to 13,010.66, 17,948.09 and 7,904.81 is: 10,904.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.66 : 17,948.09 = 7,904.81 : x
  2. Step 2: Convert to fraction form
    13,010.66/17,948.09 = 7,904.81/x
  3. Step 3: Cross multiply
    13,010.66x = 17,948.09 × 7,904.81
  4. Step 4: Simplify right side
    13,010.66x = 141,876,171.33
  5. Step 5: Solve for x
    x = 141,876,171.33/13,010.66
  6. Step 6: Final answer
    x = 10,904.61

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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.