Home / 7,647.91-10,539.68-5,519.68

Finding the Fourth Proportional to 7,647.91, 10,539.68 and 5,519.68

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Solution

The fourth proportional to 7,647.91, 10,539.68 and 5,519.68 is: 7,606.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,647.91 : 10,539.68 = 5,519.68 : x
  2. Step 2: Convert to fraction form
    7,647.91/10,539.68 = 5,519.68/x
  3. Step 3: Cross multiply
    7,647.91x = 10,539.68 × 5,519.68
  4. Step 4: Simplify right side
    7,647.91x = 58,175,660.90
  5. Step 5: Solve for x
    x = 58,175,660.90/7,647.91
  6. Step 6: Final answer
    x = 7,606.74

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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.