Home / 11,179.58-15,425.64-6,400.98

Finding the Fourth Proportional to 11,179.58, 15,425.64 and 6,400.98

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Solution

The fourth proportional to 11,179.58, 15,425.64 and 6,400.98 is: 8,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.58 : 15,425.64 = 6,400.98 : x
  2. Step 2: Convert to fraction form
    11,179.58/15,425.64 = 6,400.98/x
  3. Step 3: Cross multiply
    11,179.58x = 15,425.64 × 6,400.98
  4. Step 4: Simplify right side
    11,179.58x = 98,739,213.13
  5. Step 5: Solve for x
    x = 98,739,213.13/11,179.58
  6. Step 6: Final answer
    x = 8,832.10

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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.