Home / 7,749.47-11,624.11-1,906.13

Finding the Fourth Proportional to 7,749.47, 11,624.11 and 1,906.13

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Solution

The fourth proportional to 7,749.47, 11,624.11 and 1,906.13 is: 2,859.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,749.47 : 11,624.11 = 1,906.13 : x
  2. Step 2: Convert to fraction form
    7,749.47/11,624.11 = 1,906.13/x
  3. Step 3: Cross multiply
    7,749.47x = 11,624.11 × 1,906.13
  4. Step 4: Simplify right side
    7,749.47x = 22,157,089.09
  5. Step 5: Solve for x
    x = 22,157,089.09/7,749.47
  6. Step 6: Final answer
    x = 2,859.17

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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.