Home / 7,813.83-11,715.48-4,112.13

Finding the Fourth Proportional to 7,813.83, 11,715.48 and 4,112.13

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Solution

The fourth proportional to 7,813.83, 11,715.48 and 4,112.13 is: 6,165.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.83 : 11,715.48 = 4,112.13 : x
  2. Step 2: Convert to fraction form
    7,813.83/11,715.48 = 4,112.13/x
  3. Step 3: Cross multiply
    7,813.83x = 11,715.48 × 4,112.13
  4. Step 4: Simplify right side
    7,813.83x = 48,175,576.77
  5. Step 5: Solve for x
    x = 48,175,576.77/7,813.83
  6. Step 6: Final answer
    x = 6,165.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.