Home / 12,391.02-17,099.64-7,085.97

Finding the Fourth Proportional to 12,391.02, 17,099.64 and 7,085.97

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Solution

The fourth proportional to 12,391.02, 17,099.64 and 7,085.97 is: 9,778.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391.02 : 17,099.64 = 7,085.97 : x
  2. Step 2: Convert to fraction form
    12,391.02/17,099.64 = 7,085.97/x
  3. Step 3: Cross multiply
    12,391.02x = 17,099.64 × 7,085.97
  4. Step 4: Simplify right side
    12,391.02x = 121,167,536.05
  5. Step 5: Solve for x
    x = 121,167,536.05/12,391.02
  6. Step 6: Final answer
    x = 9,778.66

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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.