Home / 7,509.85-11,249.40-4,216.03

Finding the Fourth Proportional to 7,509.85, 11,249.40 and 4,216.03

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Solution

The fourth proportional to 7,509.85, 11,249.40 and 4,216.03 is: 6,315.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,509.85 : 11,249.40 = 4,216.03 : x
  2. Step 2: Convert to fraction form
    7,509.85/11,249.40 = 4,216.03/x
  3. Step 3: Cross multiply
    7,509.85x = 11,249.40 × 4,216.03
  4. Step 4: Simplify right side
    7,509.85x = 47,427,807.88
  5. Step 5: Solve for x
    x = 47,427,807.88/7,509.85
  6. Step 6: Final answer
    x = 6,315.41

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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.