Home / 19,617.45-27,072.64-11,961.16

Finding the Fourth Proportional to 19,617.45, 27,072.64 and 11,961.16

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Solution

The fourth proportional to 19,617.45, 27,072.64 and 11,961.16 is: 16,506.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,617.45 : 27,072.64 = 11,961.16 : x
  2. Step 2: Convert to fraction form
    19,617.45/27,072.64 = 11,961.16/x
  3. Step 3: Cross multiply
    19,617.45x = 27,072.64 × 11,961.16
  4. Step 4: Simplify right side
    19,617.45x = 323,820,178.66
  5. Step 5: Solve for x
    x = 323,820,178.66/19,617.45
  6. Step 6: Final answer
    x = 16,506.74

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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.