Home / 18,799.09-28,203.19-7,705.53

Finding the Fourth Proportional to 18,799.09, 28,203.19 and 7,705.53

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Solution

The fourth proportional to 18,799.09, 28,203.19 and 7,705.53 is: 11,560.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,799.09 : 28,203.19 = 7,705.53 : x
  2. Step 2: Convert to fraction form
    18,799.09/28,203.19 = 7,705.53/x
  3. Step 3: Cross multiply
    18,799.09x = 28,203.19 × 7,705.53
  4. Step 4: Simplify right side
    18,799.09x = 217,320,507.38
  5. Step 5: Solve for x
    x = 217,320,507.38/18,799.09
  6. Step 6: Final answer
    x = 11,560.16

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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.