Home / 7,618.74-11,429.36-3,458.58

Finding the Fourth Proportional to 7,618.74, 11,429.36 and 3,458.58

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Solution

The fourth proportional to 7,618.74, 11,429.36 and 3,458.58 is: 5,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.74 : 11,429.36 = 3,458.58 : x
  2. Step 2: Convert to fraction form
    7,618.74/11,429.36 = 3,458.58/x
  3. Step 3: Cross multiply
    7,618.74x = 11,429.36 × 3,458.58
  4. Step 4: Simplify right side
    7,618.74x = 39,529,355.91
  5. Step 5: Solve for x
    x = 39,529,355.91/7,618.74
  6. Step 6: Final answer
    x = 5,188.44

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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.