Home / 7,431.36-10,249.36-6,315.99

Finding the Fourth Proportional to 7,431.36, 10,249.36 and 6,315.99

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Solution

The fourth proportional to 7,431.36, 10,249.36 and 6,315.99 is: 8,711.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.36 : 10,249.36 = 6,315.99 : x
  2. Step 2: Convert to fraction form
    7,431.36/10,249.36 = 6,315.99/x
  3. Step 3: Cross multiply
    7,431.36x = 10,249.36 × 6,315.99
  4. Step 4: Simplify right side
    7,431.36x = 64,734,855.27
  5. Step 5: Solve for x
    x = 64,734,855.27/7,431.36
  6. Step 6: Final answer
    x = 8,711.04

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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.