Home / 13,128.71-19,696.57-5,733.77

Finding the Fourth Proportional to 13,128.71, 19,696.57 and 5,733.77

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Solution

The fourth proportional to 13,128.71, 19,696.57 and 5,733.77 is: 8,602.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.71 : 19,696.57 = 5,733.77 : x
  2. Step 2: Convert to fraction form
    13,128.71/19,696.57 = 5,733.77/x
  3. Step 3: Cross multiply
    13,128.71x = 19,696.57 × 5,733.77
  4. Step 4: Simplify right side
    13,128.71x = 112,935,489.35
  5. Step 5: Solve for x
    x = 112,935,489.35/13,128.71
  6. Step 6: Final answer
    x = 8,602.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.