Home / 13,042.71-19,566.80-5,251.52

Finding the Fourth Proportional to 13,042.71, 19,566.80 and 5,251.52

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Solution

The fourth proportional to 13,042.71, 19,566.80 and 5,251.52 is: 7,878.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.71 : 19,566.80 = 5,251.52 : x
  2. Step 2: Convert to fraction form
    13,042.71/19,566.80 = 5,251.52/x
  3. Step 3: Cross multiply
    13,042.71x = 19,566.80 × 5,251.52
  4. Step 4: Simplify right side
    13,042.71x = 102,755,317.44
  5. Step 5: Solve for x
    x = 102,755,317.44/13,042.71
  6. Step 6: Final answer
    x = 7,878.37

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1.5x scale

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.