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Finding the Fourth Proportional to 11,671.48, 17,461.14 and 9,018.28

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Solution

The fourth proportional to 11,671.48, 17,461.14 and 9,018.28 is: 13,491.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,671.48 : 17,461.14 = 9,018.28 : x
  2. Step 2: Convert to fraction form
    11,671.48/17,461.14 = 9,018.28/x
  3. Step 3: Cross multiply
    11,671.48x = 17,461.14 × 9,018.28
  4. Step 4: Simplify right side
    11,671.48x = 157,469,449.64
  5. Step 5: Solve for x
    x = 157,469,449.64/11,671.48
  6. Step 6: Final answer
    x = 13,491.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.