Home / 10,309.78-15,464.64-3,735.94

Finding the Fourth Proportional to 10,309.78, 15,464.64 and 3,735.94

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Solution

The fourth proportional to 10,309.78, 15,464.64 and 3,735.94 is: 5,603.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309.78 : 15,464.64 = 3,735.94 : x
  2. Step 2: Convert to fraction form
    10,309.78/15,464.64 = 3,735.94/x
  3. Step 3: Cross multiply
    10,309.78x = 15,464.64 × 3,735.94
  4. Step 4: Simplify right side
    10,309.78x = 57,774,967.16
  5. Step 5: Solve for x
    x = 57,774,967.16/10,309.78
  6. Step 6: Final answer
    x = 5,603.90

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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.