Home / 17,916.47-26,849.20-13,199.38

Finding the Fourth Proportional to 17,916.47, 26,849.20 and 13,199.38

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Solution

The fourth proportional to 17,916.47, 26,849.20 and 13,199.38 is: 19,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,916.47 : 26,849.20 = 13,199.38 : x
  2. Step 2: Convert to fraction form
    17,916.47/26,849.20 = 13,199.38/x
  3. Step 3: Cross multiply
    17,916.47x = 26,849.20 × 13,199.38
  4. Step 4: Simplify right side
    17,916.47x = 354,392,756.51
  5. Step 5: Solve for x
    x = 354,392,756.51/17,916.47
  6. Step 6: Final answer
    x = 19,780.28

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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.