Home / 11,279.96-15,567.73-6,435.88

Finding the Fourth Proportional to 11,279.96, 15,567.73 and 6,435.88

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Solution

The fourth proportional to 11,279.96, 15,567.73 and 6,435.88 is: 8,882.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.96 : 15,567.73 = 6,435.88 : x
  2. Step 2: Convert to fraction form
    11,279.96/15,567.73 = 6,435.88/x
  3. Step 3: Cross multiply
    11,279.96x = 15,567.73 × 6,435.88
  4. Step 4: Simplify right side
    11,279.96x = 100,192,011.28
  5. Step 5: Solve for x
    x = 100,192,011.28/11,279.96
  6. Step 6: Final answer
    x = 8,882.31

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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.