Home / 8,211.72-11,332.13-4,674.86

Finding the Fourth Proportional to 8,211.72, 11,332.13 and 4,674.86

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Solution

The fourth proportional to 8,211.72, 11,332.13 and 4,674.86 is: 6,451.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.72 : 11,332.13 = 4,674.86 : x
  2. Step 2: Convert to fraction form
    8,211.72/11,332.13 = 4,674.86/x
  3. Step 3: Cross multiply
    8,211.72x = 11,332.13 × 4,674.86
  4. Step 4: Simplify right side
    8,211.72x = 52,976,041.22
  5. Step 5: Solve for x
    x = 52,976,041.22/8,211.72
  6. Step 6: Final answer
    x = 6,451.27

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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.