Home / 11,135.49-15,368.27-6,419.94

Finding the Fourth Proportional to 11,135.49, 15,368.27 and 6,419.94

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Solution

The fourth proportional to 11,135.49, 15,368.27 and 6,419.94 is: 8,860.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.49 : 15,368.27 = 6,419.94 : x
  2. Step 2: Convert to fraction form
    11,135.49/15,368.27 = 6,419.94/x
  3. Step 3: Cross multiply
    11,135.49x = 15,368.27 × 6,419.94
  4. Step 4: Simplify right side
    11,135.49x = 98,663,371.30
  5. Step 5: Solve for x
    x = 98,663,371.30/11,135.49
  6. Step 6: Final answer
    x = 8,860.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.