Home / 8,749.92-12,072.96-5,917.71

Finding the Fourth Proportional to 8,749.92, 12,072.96 and 5,917.71

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Solution

The fourth proportional to 8,749.92, 12,072.96 and 5,917.71 is: 8,165.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.92 : 12,072.96 = 5,917.71 : x
  2. Step 2: Convert to fraction form
    8,749.92/12,072.96 = 5,917.71/x
  3. Step 3: Cross multiply
    8,749.92x = 12,072.96 × 5,917.71
  4. Step 4: Simplify right side
    8,749.92x = 71,444,276.12
  5. Step 5: Solve for x
    x = 71,444,276.12/8,749.92
  6. Step 6: Final answer
    x = 8,165.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.