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Finding the Fourth Proportional to 13,522.54, 18,649.47 and 8,805.10

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Solution

The fourth proportional to 13,522.54, 18,649.47 and 8,805.10 is: 12,143.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.54 : 18,649.47 = 8,805.10 : x
  2. Step 2: Convert to fraction form
    13,522.54/18,649.47 = 8,805.10/x
  3. Step 3: Cross multiply
    13,522.54x = 18,649.47 × 8,805.10
  4. Step 4: Simplify right side
    13,522.54x = 164,210,448.30
  5. Step 5: Solve for x
    x = 164,210,448.30/13,522.54
  6. Step 6: Final answer
    x = 12,143.46

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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.