Home / 7,749.89-11,628.12-4,235.79

Finding the Fourth Proportional to 7,749.89, 11,628.12 and 4,235.79

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Solution

The fourth proportional to 7,749.89, 11,628.12 and 4,235.79 is: 6,355.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.89 : 11,628.12 = 4,235.79 : x
  2. Step 2: Convert to fraction form
    7,749.89/11,628.12 = 4,235.79/x
  3. Step 3: Cross multiply
    7,749.89x = 11,628.12 × 4,235.79
  4. Step 4: Simplify right side
    7,749.89x = 49,254,274.41
  5. Step 5: Solve for x
    x = 49,254,274.41/7,749.89
  6. Step 6: Final answer
    x = 6,355.48

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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.