Home / 11,529.32-15,911.37-6,814.51

Finding the Fourth Proportional to 11,529.32, 15,911.37 and 6,814.51

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Solution

The fourth proportional to 11,529.32, 15,911.37 and 6,814.51 is: 9,404.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,529.32 : 15,911.37 = 6,814.51 : x
  2. Step 2: Convert to fraction form
    11,529.32/15,911.37 = 6,814.51/x
  3. Step 3: Cross multiply
    11,529.32x = 15,911.37 × 6,814.51
  4. Step 4: Simplify right side
    11,529.32x = 108,428,110.42
  5. Step 5: Solve for x
    x = 108,428,110.42/11,529.32
  6. Step 6: Final answer
    x = 9,404.55

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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.