Home / 7,878.26-10,874.15-4,521.37

Finding the Fourth Proportional to 7,878.26, 10,874.15 and 4,521.37

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Solution

The fourth proportional to 7,878.26, 10,874.15 and 4,521.37 is: 6,240.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878.26 : 10,874.15 = 4,521.37 : x
  2. Step 2: Convert to fraction form
    7,878.26/10,874.15 = 4,521.37/x
  3. Step 3: Cross multiply
    7,878.26x = 10,874.15 × 4,521.37
  4. Step 4: Simplify right side
    7,878.26x = 49,166,043.14
  5. Step 5: Solve for x
    x = 49,166,043.14/7,878.26
  6. Step 6: Final answer
    x = 6,240.72

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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.