Home / 11,183.72-15,417.23-7,816.07

Finding the Fourth Proportional to 11,183.72, 15,417.23 and 7,816.07

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Solution

The fourth proportional to 11,183.72, 15,417.23 and 7,816.07 is: 10,774.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,183.72 : 15,417.23 = 7,816.07 : x
  2. Step 2: Convert to fraction form
    11,183.72/15,417.23 = 7,816.07/x
  3. Step 3: Cross multiply
    11,183.72x = 15,417.23 × 7,816.07
  4. Step 4: Simplify right side
    11,183.72x = 120,502,071.80
  5. Step 5: Solve for x
    x = 120,502,071.80/11,183.72
  6. Step 6: Final answer
    x = 10,774.78

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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.