Home / 10,428.82-15,643.24-4,277.14

Finding the Fourth Proportional to 10,428.82, 15,643.24 and 4,277.14

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Solution

The fourth proportional to 10,428.82, 15,643.24 and 4,277.14 is: 6,415.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.82 : 15,643.24 = 4,277.14 : x
  2. Step 2: Convert to fraction form
    10,428.82/15,643.24 = 4,277.14/x
  3. Step 3: Cross multiply
    10,428.82x = 15,643.24 × 4,277.14
  4. Step 4: Simplify right side
    10,428.82x = 66,908,327.53
  5. Step 5: Solve for x
    x = 66,908,327.53/10,428.82
  6. Step 6: Final answer
    x = 6,415.71

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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.