Home / 13,018.11-17,995.22-11,615.68

Finding the Fourth Proportional to 13,018.11, 17,995.22 and 11,615.68

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Solution

The fourth proportional to 13,018.11, 17,995.22 and 11,615.68 is: 16,056.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.11 : 17,995.22 = 11,615.68 : x
  2. Step 2: Convert to fraction form
    13,018.11/17,995.22 = 11,615.68/x
  3. Step 3: Cross multiply
    13,018.11x = 17,995.22 × 11,615.68
  4. Step 4: Simplify right side
    13,018.11x = 209,026,717.05
  5. Step 5: Solve for x
    x = 209,026,717.05/13,018.11
  6. Step 6: Final answer
    x = 16,056.61

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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.