Home / 8,429.08-11,630.14-4,891.68

Finding the Fourth Proportional to 8,429.08, 11,630.14 and 4,891.68

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Solution

The fourth proportional to 8,429.08, 11,630.14 and 4,891.68 is: 6,749.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.08 : 11,630.14 = 4,891.68 : x
  2. Step 2: Convert to fraction form
    8,429.08/11,630.14 = 4,891.68/x
  3. Step 3: Cross multiply
    8,429.08x = 11,630.14 × 4,891.68
  4. Step 4: Simplify right side
    8,429.08x = 56,890,923.24
  5. Step 5: Solve for x
    x = 56,890,923.24/8,429.08
  6. Step 6: Final answer
    x = 6,749.36

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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.