Home / 11,135.55-15,367.31-6,355.40

Finding the Fourth Proportional to 11,135.55, 15,367.31 and 6,355.40

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Solution

The fourth proportional to 11,135.55, 15,367.31 and 6,355.40 is: 8,770.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.55 : 15,367.31 = 6,355.40 : x
  2. Step 2: Convert to fraction form
    11,135.55/15,367.31 = 6,355.40/x
  3. Step 3: Cross multiply
    11,135.55x = 15,367.31 × 6,355.40
  4. Step 4: Simplify right side
    11,135.55x = 97,665,396.76
  5. Step 5: Solve for x
    x = 97,665,396.76/11,135.55
  6. Step 6: Final answer
    x = 8,770.59

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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.