Home / 12,517.09-17,276.91-7,798.57

Finding the Fourth Proportional to 12,517.09, 17,276.91 and 7,798.57

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Solution

The fourth proportional to 12,517.09, 17,276.91 and 7,798.57 is: 10,764.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,517.09 : 17,276.91 = 7,798.57 : x
  2. Step 2: Convert to fraction form
    12,517.09/17,276.91 = 7,798.57/x
  3. Step 3: Cross multiply
    12,517.09x = 17,276.91 × 7,798.57
  4. Step 4: Simplify right side
    12,517.09x = 134,735,105.63
  5. Step 5: Solve for x
    x = 134,735,105.63/12,517.09
  6. Step 6: Final answer
    x = 10,764.10

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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.