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Finding the Fourth Proportional to 12,223.43, 16,864.94 and 6,918.14

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Solution

The fourth proportional to 12,223.43, 16,864.94 and 6,918.14 is: 9,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223.43 : 16,864.94 = 6,918.14 : x
  2. Step 2: Convert to fraction form
    12,223.43/16,864.94 = 6,918.14/x
  3. Step 3: Cross multiply
    12,223.43x = 16,864.94 × 6,918.14
  4. Step 4: Simplify right side
    12,223.43x = 116,673,897.10
  5. Step 5: Solve for x
    x = 116,673,897.10/12,223.43
  6. Step 6: Final answer
    x = 9,545.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.