Home / 12,018.38-17,916.48-11,829.02

Finding the Fourth Proportional to 12,018.38, 17,916.48 and 11,829.02

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Solution

The fourth proportional to 12,018.38, 17,916.48 and 11,829.02 is: 17,634.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018.38 : 17,916.48 = 11,829.02 : x
  2. Step 2: Convert to fraction form
    12,018.38/17,916.48 = 11,829.02/x
  3. Step 3: Cross multiply
    12,018.38x = 17,916.48 × 11,829.02
  4. Step 4: Simplify right side
    12,018.38x = 211,934,341.10
  5. Step 5: Solve for x
    x = 211,934,341.10/12,018.38
  6. Step 6: Final answer
    x = 17,634.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.