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Finding the Fourth Proportional to 18,871, 26,034.48 and 13,204.24

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Solution

The fourth proportional to 18,871, 26,034.48 and 13,204.24 is: 18,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871 : 26,034.48 = 13,204.24 : x
  2. Step 2: Convert to fraction form
    18,871/26,034.48 = 13,204.24/x
  3. Step 3: Cross multiply
    18,871x = 26,034.48 × 13,204.24
  4. Step 4: Simplify right side
    18,871x = 343,765,522.20
  5. Step 5: Solve for x
    x = 343,765,522.20/18,871
  6. Step 6: Final answer
    x = 18,216.60

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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.