Home / 18,743.06-28,118.31-9,862.63

Finding the Fourth Proportional to 18,743.06, 28,118.31 and 9,862.63

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Solution

The fourth proportional to 18,743.06, 28,118.31 and 9,862.63 is: 14,795.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.06 : 28,118.31 = 9,862.63 : x
  2. Step 2: Convert to fraction form
    18,743.06/28,118.31 = 9,862.63/x
  3. Step 3: Cross multiply
    18,743.06x = 28,118.31 × 9,862.63
  4. Step 4: Simplify right side
    18,743.06x = 277,320,380.47
  5. Step 5: Solve for x
    x = 277,320,380.47/18,743.06
  6. Step 6: Final answer
    x = 14,795.89

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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.