Home / 11,148.87-15,385.10-6,112.96

Finding the Fourth Proportional to 11,148.87, 15,385.10 and 6,112.96

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Solution

The fourth proportional to 11,148.87, 15,385.10 and 6,112.96 is: 8,435.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.87 : 15,385.10 = 6,112.96 : x
  2. Step 2: Convert to fraction form
    11,148.87/15,385.10 = 6,112.96/x
  3. Step 3: Cross multiply
    11,148.87x = 15,385.10 × 6,112.96
  4. Step 4: Simplify right side
    11,148.87x = 94,048,431.87
  5. Step 5: Solve for x
    x = 94,048,431.87/11,148.87
  6. Step 6: Final answer
    x = 8,435.69

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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.