Home / 10,230.86-15,346.60-3,990.62

Finding the Fourth Proportional to 10,230.86, 15,346.60 and 3,990.62

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Solution

The fourth proportional to 10,230.86, 15,346.60 and 3,990.62 is: 5,986.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,230.86 : 15,346.60 = 3,990.62 : x
  2. Step 2: Convert to fraction form
    10,230.86/15,346.60 = 3,990.62/x
  3. Step 3: Cross multiply
    10,230.86x = 15,346.60 × 3,990.62
  4. Step 4: Simplify right side
    10,230.86x = 61,242,438.92
  5. Step 5: Solve for x
    x = 61,242,438.92/10,230.86
  6. Step 6: Final answer
    x = 5,986.05

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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.