Home / 11,091.63-15,305.03-7,322.09

Finding the Fourth Proportional to 11,091.63, 15,305.03 and 7,322.09

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Solution

The fourth proportional to 11,091.63, 15,305.03 and 7,322.09 is: 10,103.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,091.63 : 15,305.03 = 7,322.09 : x
  2. Step 2: Convert to fraction form
    11,091.63/15,305.03 = 7,322.09/x
  3. Step 3: Cross multiply
    11,091.63x = 15,305.03 × 7,322.09
  4. Step 4: Simplify right side
    11,091.63x = 112,064,807.11
  5. Step 5: Solve for x
    x = 112,064,807.11/11,091.63
  6. Step 6: Final answer
    x = 10,103.55

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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.