Home / 8,142.30-11,236.05-4,606.25

Finding the Fourth Proportional to 8,142.30, 11,236.05 and 4,606.25

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Solution

The fourth proportional to 8,142.30, 11,236.05 and 4,606.25 is: 6,356.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.30 : 11,236.05 = 4,606.25 : x
  2. Step 2: Convert to fraction form
    8,142.30/11,236.05 = 4,606.25/x
  3. Step 3: Cross multiply
    8,142.30x = 11,236.05 × 4,606.25
  4. Step 4: Simplify right side
    8,142.30x = 51,755,999.13
  5. Step 5: Solve for x
    x = 51,755,999.13/8,142.30
  6. Step 6: Final answer
    x = 6,356.43

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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.