Home / 16,780.32-23,116.80-11,735.10

Finding the Fourth Proportional to 16,780.32, 23,116.80 and 11,735.10

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Solution

The fourth proportional to 16,780.32, 23,116.80 and 11,735.10 is: 16,166.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,780.32 : 23,116.80 = 11,735.10 : x
  2. Step 2: Convert to fraction form
    16,780.32/23,116.80 = 11,735.10/x
  3. Step 3: Cross multiply
    16,780.32x = 23,116.80 × 11,735.10
  4. Step 4: Simplify right side
    16,780.32x = 271,277,959.68
  5. Step 5: Solve for x
    x = 271,277,959.68/16,780.32
  6. Step 6: Final answer
    x = 16,166.44

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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.