Home / 10,430.86-15,651.31-6,481.05

Finding the Fourth Proportional to 10,430.86, 15,651.31 and 6,481.05

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Solution

The fourth proportional to 10,430.86, 15,651.31 and 6,481.05 is: 9,724.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.86 : 15,651.31 = 6,481.05 : x
  2. Step 2: Convert to fraction form
    10,430.86/15,651.31 = 6,481.05/x
  3. Step 3: Cross multiply
    10,430.86x = 15,651.31 × 6,481.05
  4. Step 4: Simplify right side
    10,430.86x = 101,436,922.68
  5. Step 5: Solve for x
    x = 101,436,922.68/10,430.86
  6. Step 6: Final answer
    x = 9,724.69

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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.