Home / 10,131.01-15,179.05-9,103.81

Finding the Fourth Proportional to 10,131.01, 15,179.05 and 9,103.81

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Solution

The fourth proportional to 10,131.01, 15,179.05 and 9,103.81 is: 13,640.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.01 : 15,179.05 = 9,103.81 : x
  2. Step 2: Convert to fraction form
    10,131.01/15,179.05 = 9,103.81/x
  3. Step 3: Cross multiply
    10,131.01x = 15,179.05 × 9,103.81
  4. Step 4: Simplify right side
    10,131.01x = 138,187,187.18
  5. Step 5: Solve for x
    x = 138,187,187.18/10,131.01
  6. Step 6: Final answer
    x = 13,640.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.