Home / 7,472.37-11,215.49-3,777.20

Finding the Fourth Proportional to 7,472.37, 11,215.49 and 3,777.20

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Solution

The fourth proportional to 7,472.37, 11,215.49 and 3,777.20 is: 5,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.37 : 11,215.49 = 3,777.20 : x
  2. Step 2: Convert to fraction form
    7,472.37/11,215.49 = 3,777.20/x
  3. Step 3: Cross multiply
    7,472.37x = 11,215.49 × 3,777.20
  4. Step 4: Simplify right side
    7,472.37x = 42,363,073.86
  5. Step 5: Solve for x
    x = 42,363,073.86/7,472.37
  6. Step 6: Final answer
    x = 5,669.30

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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.