Home / 7,743.96-11,617.47-2,813.76

Finding the Fourth Proportional to 7,743.96, 11,617.47 and 2,813.76

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Solution

The fourth proportional to 7,743.96, 11,617.47 and 2,813.76 is: 4,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.96 : 11,617.47 = 2,813.76 : x
  2. Step 2: Convert to fraction form
    7,743.96/11,617.47 = 2,813.76/x
  3. Step 3: Cross multiply
    7,743.96x = 11,617.47 × 2,813.76
  4. Step 4: Simplify right side
    7,743.96x = 32,688,772.39
  5. Step 5: Solve for x
    x = 32,688,772.39/7,743.96
  6. Step 6: Final answer
    x = 4,221.20

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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.