Home / 10,108.80-13,887.45-8,334.90

Finding the Fourth Proportional to 10,108.80, 13,887.45 and 8,334.90

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Solution

The fourth proportional to 10,108.80, 13,887.45 and 8,334.90 is: 11,450.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,108.80 : 13,887.45 = 8,334.90 : x
  2. Step 2: Convert to fraction form
    10,108.80/13,887.45 = 8,334.90/x
  3. Step 3: Cross multiply
    10,108.80x = 13,887.45 × 8,334.90
  4. Step 4: Simplify right side
    10,108.80x = 115,750,507.01
  5. Step 5: Solve for x
    x = 115,750,507.01/10,108.80
  6. Step 6: Final answer
    x = 11,450.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.