Home / 11,013.13-15,194.13-7,238.32

Finding the Fourth Proportional to 11,013.13, 15,194.13 and 7,238.32

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Solution

The fourth proportional to 11,013.13, 15,194.13 and 7,238.32 is: 9,986.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,013.13 : 15,194.13 = 7,238.32 : x
  2. Step 2: Convert to fraction form
    11,013.13/15,194.13 = 7,238.32/x
  3. Step 3: Cross multiply
    11,013.13x = 15,194.13 × 7,238.32
  4. Step 4: Simplify right side
    11,013.13x = 109,979,975.06
  5. Step 5: Solve for x
    x = 109,979,975.06/11,013.13
  6. Step 6: Final answer
    x = 9,986.26

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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.