Home / 8,445.78-11,650.50-4,908.60

Finding the Fourth Proportional to 8,445.78, 11,650.50 and 4,908.60

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Solution

The fourth proportional to 8,445.78, 11,650.50 and 4,908.60 is: 6,771.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.78 : 11,650.50 = 4,908.60 : x
  2. Step 2: Convert to fraction form
    8,445.78/11,650.50 = 4,908.60/x
  3. Step 3: Cross multiply
    8,445.78x = 11,650.50 × 4,908.60
  4. Step 4: Simplify right side
    8,445.78x = 57,187,644.30
  5. Step 5: Solve for x
    x = 57,187,644.30/8,445.78
  6. Step 6: Final answer
    x = 6,771.15

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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.