Home / 12,845.59-17,730.29-11,516.99

Finding the Fourth Proportional to 12,845.59, 17,730.29 and 11,516.99

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Solution

The fourth proportional to 12,845.59, 17,730.29 and 11,516.99 is: 15,896.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.59 : 17,730.29 = 11,516.99 : x
  2. Step 2: Convert to fraction form
    12,845.59/17,730.29 = 11,516.99/x
  3. Step 3: Cross multiply
    12,845.59x = 17,730.29 × 11,516.99
  4. Step 4: Simplify right side
    12,845.59x = 204,199,512.77
  5. Step 5: Solve for x
    x = 204,199,512.77/12,845.59
  6. Step 6: Final answer
    x = 15,896.47

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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.