Home / 11,148.87-15,385.03-6,112.98

Finding the Fourth Proportional to 11,148.87, 15,385.03 and 6,112.98

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Solution

The fourth proportional to 11,148.87, 15,385.03 and 6,112.98 is: 8,435.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.87 : 15,385.03 = 6,112.98 : x
  2. Step 2: Convert to fraction form
    11,148.87/15,385.03 = 6,112.98/x
  3. Step 3: Cross multiply
    11,148.87x = 15,385.03 × 6,112.98
  4. Step 4: Simplify right side
    11,148.87x = 94,048,380.69
  5. Step 5: Solve for x
    x = 94,048,380.69/11,148.87
  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.