Home / 18,743.17-28,100.86-11,345.88

Finding the Fourth Proportional to 18,743.17, 28,100.86 and 11,345.88

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Solution

The fourth proportional to 18,743.17, 28,100.86 and 11,345.88 is: 17,010.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.17 : 28,100.86 = 11,345.88 : x
  2. Step 2: Convert to fraction form
    18,743.17/28,100.86 = 11,345.88/x
  3. Step 3: Cross multiply
    18,743.17x = 28,100.86 × 11,345.88
  4. Step 4: Simplify right side
    18,743.17x = 318,828,894.26
  5. Step 5: Solve for x
    x = 318,828,894.26/18,743.17
  6. Step 6: Final answer
    x = 17,010.41

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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.