Home / 8,427.83-11,630.18-4,650.90

Finding the Fourth Proportional to 8,427.83, 11,630.18 and 4,650.90

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Solution

The fourth proportional to 8,427.83, 11,630.18 and 4,650.90 is: 6,418.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.83 : 11,630.18 = 4,650.90 : x
  2. Step 2: Convert to fraction form
    8,427.83/11,630.18 = 4,650.90/x
  3. Step 3: Cross multiply
    8,427.83x = 11,630.18 × 4,650.90
  4. Step 4: Simplify right side
    8,427.83x = 54,090,780.91
  5. Step 5: Solve for x
    x = 54,090,780.91/8,427.83
  6. Step 6: Final answer
    x = 6,418.12

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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.