Home / 6,109.38-9,117.93-5,518.89

Finding the Fourth Proportional to 6,109.38, 9,117.93 and 5,518.89

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Solution

The fourth proportional to 6,109.38, 9,117.93 and 5,518.89 is: 8,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,109.38 : 9,117.93 = 5,518.89 : x
  2. Step 2: Convert to fraction form
    6,109.38/9,117.93 = 5,518.89/x
  3. Step 3: Cross multiply
    6,109.38x = 9,117.93 × 5,518.89
  4. Step 4: Simplify right side
    6,109.38x = 50,320,852.70
  5. Step 5: Solve for x
    x = 50,320,852.70/6,109.38
  6. Step 6: Final answer
    x = 8,236.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.