Home / 10,513.21-15,769.24-3,938.92

Finding the Fourth Proportional to 10,513.21, 15,769.24 and 3,938.92

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Solution

The fourth proportional to 10,513.21, 15,769.24 and 3,938.92 is: 5,908.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.21 : 15,769.24 = 3,938.92 : x
  2. Step 2: Convert to fraction form
    10,513.21/15,769.24 = 3,938.92/x
  3. Step 3: Cross multiply
    10,513.21x = 15,769.24 × 3,938.92
  4. Step 4: Simplify right side
    10,513.21x = 62,113,774.82
  5. Step 5: Solve for x
    x = 62,113,774.82/10,513.21
  6. Step 6: Final answer
    x = 5,908.16

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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.