Home / 10,438.59-15,660.32-3,513.09

Finding the Fourth Proportional to 10,438.59, 15,660.32 and 3,513.09

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Solution

The fourth proportional to 10,438.59, 15,660.32 and 3,513.09 is: 5,270.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.59 : 15,660.32 = 3,513.09 : x
  2. Step 2: Convert to fraction form
    10,438.59/15,660.32 = 3,513.09/x
  3. Step 3: Cross multiply
    10,438.59x = 15,660.32 × 3,513.09
  4. Step 4: Simplify right side
    10,438.59x = 55,016,174.51
  5. Step 5: Solve for x
    x = 55,016,174.51/10,438.59
  6. Step 6: Final answer
    x = 5,270.46

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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.