Home / 8,169.10-11,272.19-4,631.63

Finding the Fourth Proportional to 8,169.10, 11,272.19 and 4,631.63

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Solution

The fourth proportional to 8,169.10, 11,272.19 and 4,631.63 is: 6,390.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.10 : 11,272.19 = 4,631.63 : x
  2. Step 2: Convert to fraction form
    8,169.10/11,272.19 = 4,631.63/x
  3. Step 3: Cross multiply
    8,169.10x = 11,272.19 × 4,631.63
  4. Step 4: Simplify right side
    8,169.10x = 52,208,533.85
  5. Step 5: Solve for x
    x = 52,208,533.85/8,169.10
  6. Step 6: Final answer
    x = 6,390.98

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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.