Home / 7,618.14-11,408.78-5,271.58

Finding the Fourth Proportional to 7,618.14, 11,408.78 and 5,271.58

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Solution

The fourth proportional to 7,618.14, 11,408.78 and 5,271.58 is: 7,894.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.14 : 11,408.78 = 5,271.58 : x
  2. Step 2: Convert to fraction form
    7,618.14/11,408.78 = 5,271.58/x
  3. Step 3: Cross multiply
    7,618.14x = 11,408.78 × 5,271.58
  4. Step 4: Simplify right side
    7,618.14x = 60,142,296.47
  5. Step 5: Solve for x
    x = 60,142,296.47/7,618.14
  6. Step 6: Final answer
    x = 7,894.62

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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.