Home / 9,428.39-14,143.29-2,855.10

Finding the Fourth Proportional to 9,428.39, 14,143.29 and 2,855.10

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Solution

The fourth proportional to 9,428.39, 14,143.29 and 2,855.10 is: 4,282.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,428.39 : 14,143.29 = 2,855.10 : x
  2. Step 2: Convert to fraction form
    9,428.39/14,143.29 = 2,855.10/x
  3. Step 3: Cross multiply
    9,428.39x = 14,143.29 × 2,855.10
  4. Step 4: Simplify right side
    9,428.39x = 40,380,507.28
  5. Step 5: Solve for x
    x = 40,380,507.28/9,428.39
  6. Step 6: Final answer
    x = 4,282.86

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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.