Home / 10,513.49-15,773.27-3,118.11

Finding the Fourth Proportional to 10,513.49, 15,773.27 and 3,118.11

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Solution

The fourth proportional to 10,513.49, 15,773.27 and 3,118.11 is: 4,678.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.49 : 15,773.27 = 3,118.11 : x
  2. Step 2: Convert to fraction form
    10,513.49/15,773.27 = 3,118.11/x
  3. Step 3: Cross multiply
    10,513.49x = 15,773.27 × 3,118.11
  4. Step 4: Simplify right side
    10,513.49x = 49,182,775.33
  5. Step 5: Solve for x
    x = 49,182,775.33/10,513.49
  6. Step 6: Final answer
    x = 4,678.07

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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.