Home / 7,612.32-11,418.48-5,425.32

Finding the Fourth Proportional to 7,612.32, 11,418.48 and 5,425.32

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Solution

The fourth proportional to 7,612.32, 11,418.48 and 5,425.32 is: 8,137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,612.32 : 11,418.48 = 5,425.32 : x
  2. Step 2: Convert to fraction form
    7,612.32/11,418.48 = 5,425.32/x
  3. Step 3: Cross multiply
    7,612.32x = 11,418.48 × 5,425.32
  4. Step 4: Simplify right side
    7,612.32x = 61,948,907.91
  5. Step 5: Solve for x
    x = 61,948,907.91/7,612.32
  6. Step 6: Final answer
    x = 8,137.98

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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.