Home / 7,818.49-10,789.09-4,281.02

Finding the Fourth Proportional to 7,818.49, 10,789.09 and 4,281.02

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Solution

The fourth proportional to 7,818.49, 10,789.09 and 4,281.02 is: 5,907.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.49 : 10,789.09 = 4,281.02 : x
  2. Step 2: Convert to fraction form
    7,818.49/10,789.09 = 4,281.02/x
  3. Step 3: Cross multiply
    7,818.49x = 10,789.09 × 4,281.02
  4. Step 4: Simplify right side
    7,818.49x = 46,188,245.42
  5. Step 5: Solve for x
    x = 46,188,245.42/7,818.49
  6. Step 6: Final answer
    x = 5,907.57

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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.