Home / 11,062.08-15,239.70-7,699.12

Finding the Fourth Proportional to 11,062.08, 15,239.70 and 7,699.12

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Solution

The fourth proportional to 11,062.08, 15,239.70 and 7,699.12 is: 10,606.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,062.08 : 15,239.70 = 7,699.12 : x
  2. Step 2: Convert to fraction form
    11,062.08/15,239.70 = 7,699.12/x
  3. Step 3: Cross multiply
    11,062.08x = 15,239.70 × 7,699.12
  4. Step 4: Simplify right side
    11,062.08x = 117,332,279.06
  5. Step 5: Solve for x
    x = 117,332,279.06/11,062.08
  6. Step 6: Final answer
    x = 10,606.71

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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.