Home / 7,890.87-11,837.13-4,562.85

Finding the Fourth Proportional to 7,890.87, 11,837.13 and 4,562.85

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Solution

The fourth proportional to 7,890.87, 11,837.13 and 4,562.85 is: 6,844.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.87 : 11,837.13 = 4,562.85 : x
  2. Step 2: Convert to fraction form
    7,890.87/11,837.13 = 4,562.85/x
  3. Step 3: Cross multiply
    7,890.87x = 11,837.13 × 4,562.85
  4. Step 4: Simplify right side
    7,890.87x = 54,011,048.62
  5. Step 5: Solve for x
    x = 54,011,048.62/7,890.87
  6. Step 6: Final answer
    x = 6,844.75

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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.