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Finding the Fourth Proportional to 18,922, 26,109.48 and 10,962.68

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Solution

The fourth proportional to 18,922, 26,109.48 and 10,962.68 is: 15,126.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922 : 26,109.48 = 10,962.68 : x
  2. Step 2: Convert to fraction form
    18,922/26,109.48 = 10,962.68/x
  3. Step 3: Cross multiply
    18,922x = 26,109.48 × 10,962.68
  4. Step 4: Simplify right side
    18,922x = 286,229,874.21
  5. Step 5: Solve for x
    x = 286,229,874.21/18,922
  6. Step 6: Final answer
    x = 15,126.83

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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.