Home / 7,678.22-11,498.88-4,381.32

Finding the Fourth Proportional to 7,678.22, 11,498.88 and 4,381.32

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Solution

The fourth proportional to 7,678.22, 11,498.88 and 4,381.32 is: 6,561.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.22 : 11,498.88 = 4,381.32 : x
  2. Step 2: Convert to fraction form
    7,678.22/11,498.88 = 4,381.32/x
  3. Step 3: Cross multiply
    7,678.22x = 11,498.88 × 4,381.32
  4. Step 4: Simplify right side
    7,678.22x = 50,380,272.92
  5. Step 5: Solve for x
    x = 50,380,272.92/7,678.22
  6. Step 6: Final answer
    x = 6,561.45

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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.