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Finding the Fourth Proportional to 18,327, 25,291.32 and 11,253.36

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Solution

The fourth proportional to 18,327, 25,291.32 and 11,253.36 is: 15,529.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327 : 25,291.32 = 11,253.36 : x
  2. Step 2: Convert to fraction form
    18,327/25,291.32 = 11,253.36/x
  3. Step 3: Cross multiply
    18,327x = 25,291.32 × 11,253.36
  4. Step 4: Simplify right side
    18,327x = 284,612,328.84
  5. Step 5: Solve for x
    x = 284,612,328.84/18,327
  6. Step 6: Final answer
    x = 15,529.67

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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.