Home / 11,212.09-15,462.37-7,382.11

Finding the Fourth Proportional to 11,212.09, 15,462.37 and 7,382.11

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Solution

The fourth proportional to 11,212.09, 15,462.37 and 7,382.11 is: 10,180.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.09 : 15,462.37 = 7,382.11 : x
  2. Step 2: Convert to fraction form
    11,212.09/15,462.37 = 7,382.11/x
  3. Step 3: Cross multiply
    11,212.09x = 15,462.37 × 7,382.11
  4. Step 4: Simplify right side
    11,212.09x = 114,144,916.20
  5. Step 5: Solve for x
    x = 114,144,916.20/11,212.09
  6. Step 6: Final answer
    x = 10,180.52

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1.5x scale

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.