Home / 10,285.37-15,403.45-9,768.69

Finding the Fourth Proportional to 10,285.37, 15,403.45 and 9,768.69

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Solution

The fourth proportional to 10,285.37, 15,403.45 and 9,768.69 is: 14,629.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.37 : 15,403.45 = 9,768.69 : x
  2. Step 2: Convert to fraction form
    10,285.37/15,403.45 = 9,768.69/x
  3. Step 3: Cross multiply
    10,285.37x = 15,403.45 × 9,768.69
  4. Step 4: Simplify right side
    10,285.37x = 150,471,527.98
  5. Step 5: Solve for x
    x = 150,471,527.98/10,285.37
  6. Step 6: Final answer
    x = 14,629.67

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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.