Home / 16,678.49-23,012.66-9,963.09

Finding the Fourth Proportional to 16,678.49, 23,012.66 and 9,963.09

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Solution

The fourth proportional to 16,678.49, 23,012.66 and 9,963.09 is: 13,746.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,678.49 : 23,012.66 = 9,963.09 : x
  2. Step 2: Convert to fraction form
    16,678.49/23,012.66 = 9,963.09/x
  3. Step 3: Cross multiply
    16,678.49x = 23,012.66 × 9,963.09
  4. Step 4: Simplify right side
    16,678.49x = 229,277,152.90
  5. Step 5: Solve for x
    x = 229,277,152.90/16,678.49
  6. Step 6: Final answer
    x = 13,746.88

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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.