Home / 8,127.32-12,182.77-4,421.88

Finding the Fourth Proportional to 8,127.32, 12,182.77 and 4,421.88

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Solution

The fourth proportional to 8,127.32, 12,182.77 and 4,421.88 is: 6,628.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.32 : 12,182.77 = 4,421.88 : x
  2. Step 2: Convert to fraction form
    8,127.32/12,182.77 = 4,421.88/x
  3. Step 3: Cross multiply
    8,127.32x = 12,182.77 × 4,421.88
  4. Step 4: Simplify right side
    8,127.32x = 53,870,747.01
  5. Step 5: Solve for x
    x = 53,870,747.01/8,127.32
  6. Step 6: Final answer
    x = 6,628.35

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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.