Home / 11,118.73-15,336.57-6,638.98

Finding the Fourth Proportional to 11,118.73, 15,336.57 and 6,638.98

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Solution

The fourth proportional to 11,118.73, 15,336.57 and 6,638.98 is: 9,157.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.73 : 15,336.57 = 6,638.98 : x
  2. Step 2: Convert to fraction form
    11,118.73/15,336.57 = 6,638.98/x
  3. Step 3: Cross multiply
    11,118.73x = 15,336.57 × 6,638.98
  4. Step 4: Simplify right side
    11,118.73x = 101,819,181.50
  5. Step 5: Solve for x
    x = 101,819,181.50/11,118.73
  6. Step 6: Final answer
    x = 9,157.45

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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.