Home / 15,316.83-21,145.64-9,268.20

Finding the Fourth Proportional to 15,316.83, 21,145.64 and 9,268.20

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Solution

The fourth proportional to 15,316.83, 21,145.64 and 9,268.20 is: 12,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316.83 : 21,145.64 = 9,268.20 : x
  2. Step 2: Convert to fraction form
    15,316.83/21,145.64 = 9,268.20/x
  3. Step 3: Cross multiply
    15,316.83x = 21,145.64 × 9,268.20
  4. Step 4: Simplify right side
    15,316.83x = 195,981,974.31
  5. Step 5: Solve for x
    x = 195,981,974.31/15,316.83
  6. Step 6: Final answer
    x = 12,795.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.