Home / 11,966.49-16,513.56-6,661.17

Finding the Fourth Proportional to 11,966.49, 16,513.56 and 6,661.17

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Solution

The fourth proportional to 11,966.49, 16,513.56 and 6,661.17 is: 9,192.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,966.49 : 16,513.56 = 6,661.17 : x
  2. Step 2: Convert to fraction form
    11,966.49/16,513.56 = 6,661.17/x
  3. Step 3: Cross multiply
    11,966.49x = 16,513.56 × 6,661.17
  4. Step 4: Simplify right side
    11,966.49x = 109,999,630.47
  5. Step 5: Solve for x
    x = 109,999,630.47/11,966.49
  6. Step 6: Final answer
    x = 9,192.31

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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.