Home / 10,129.12-15,191.25-3,203.62

Finding the Fourth Proportional to 10,129.12, 15,191.25 and 3,203.62

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Solution

The fourth proportional to 10,129.12, 15,191.25 and 3,203.62 is: 4,804.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.12 : 15,191.25 = 3,203.62 : x
  2. Step 2: Convert to fraction form
    10,129.12/15,191.25 = 3,203.62/x
  3. Step 3: Cross multiply
    10,129.12x = 15,191.25 × 3,203.62
  4. Step 4: Simplify right side
    10,129.12x = 48,666,942.33
  5. Step 5: Solve for x
    x = 48,666,942.33/10,129.12
  6. Step 6: Final answer
    x = 4,804.66

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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.