Home / 11,403.32-15,736.56-6,687.56

Finding the Fourth Proportional to 11,403.32, 15,736.56 and 6,687.56

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Solution

The fourth proportional to 11,403.32, 15,736.56 and 6,687.56 is: 9,228.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,403.32 : 15,736.56 = 6,687.56 : x
  2. Step 2: Convert to fraction form
    11,403.32/15,736.56 = 6,687.56/x
  3. Step 3: Cross multiply
    11,403.32x = 15,736.56 × 6,687.56
  4. Step 4: Simplify right side
    11,403.32x = 105,239,189.19
  5. Step 5: Solve for x
    x = 105,239,189.19/11,403.32
  6. Step 6: Final answer
    x = 9,228.82

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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.