Home / 7,607.15-11,403.44-3,218.57

Finding the Fourth Proportional to 7,607.15, 11,403.44 and 3,218.57

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Solution

The fourth proportional to 7,607.15, 11,403.44 and 3,218.57 is: 4,824.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,607.15 : 11,403.44 = 3,218.57 : x
  2. Step 2: Convert to fraction form
    7,607.15/11,403.44 = 3,218.57/x
  3. Step 3: Cross multiply
    7,607.15x = 11,403.44 × 3,218.57
  4. Step 4: Simplify right side
    7,607.15x = 36,702,753.79
  5. Step 5: Solve for x
    x = 36,702,753.79/7,607.15
  6. Step 6: Final answer
    x = 4,824.77

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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.