Home / 18,714.30-28,033.65-11,672.70

Finding the Fourth Proportional to 18,714.30, 28,033.65 and 11,672.70

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Solution

The fourth proportional to 18,714.30, 28,033.65 and 11,672.70 is: 17,485.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714.30 : 28,033.65 = 11,672.70 : x
  2. Step 2: Convert to fraction form
    18,714.30/28,033.65 = 11,672.70/x
  3. Step 3: Cross multiply
    18,714.30x = 28,033.65 × 11,672.70
  4. Step 4: Simplify right side
    18,714.30x = 327,228,386.36
  5. Step 5: Solve for x
    x = 327,228,386.36/18,714.30
  6. Step 6: Final answer
    x = 17,485.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.