Home / 11,758.72-16,218.48-7,783.24

Finding the Fourth Proportional to 11,758.72, 16,218.48 and 7,783.24

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Solution

The fourth proportional to 11,758.72, 16,218.48 and 7,783.24 is: 10,735.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,758.72 : 16,218.48 = 7,783.24 : x
  2. Step 2: Convert to fraction form
    11,758.72/16,218.48 = 7,783.24/x
  3. Step 3: Cross multiply
    11,758.72x = 16,218.48 × 7,783.24
  4. Step 4: Simplify right side
    11,758.72x = 126,232,322.28
  5. Step 5: Solve for x
    x = 126,232,322.28/11,758.72
  6. Step 6: Final answer
    x = 10,735.21

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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.