Home / 12,090.25-18,139.43-10,925.65

Finding the Fourth Proportional to 12,090.25, 18,139.43 and 10,925.65

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Solution

The fourth proportional to 12,090.25, 18,139.43 and 10,925.65 is: 16,392.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.25 : 18,139.43 = 10,925.65 : x
  2. Step 2: Convert to fraction form
    12,090.25/18,139.43 = 10,925.65/x
  3. Step 3: Cross multiply
    12,090.25x = 18,139.43 × 10,925.65
  4. Step 4: Simplify right side
    12,090.25x = 198,185,063.38
  5. Step 5: Solve for x
    x = 198,185,063.38/12,090.25
  6. Step 6: Final answer
    x = 16,392.14

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